diff --git a/generator-exercise/package-lock.json b/generator-exercise/package-lock.json
index c835a8f..d57a456 100644
--- a/generator-exercise/package-lock.json
+++ b/generator-exercise/package-lock.json
@@ -2,6 +2,7 @@
   "name": "generator-exercise",
   "version": "0.0.0",
   "lockfileVersion": 1,
+  "requires": true,
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       "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
       "dev": true,
+      "requires": {
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@@ -34,6 +38,9 @@
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       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
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       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
-      "dev": true
+      "dev": true,
+      "requires": {
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+        "json-stable-stringify": "^1.0.1"
+      }
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@@ -59,7 +70,13 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
-      "dev": true
+      "dev": true,
+      "optional": true,
+      "requires": {
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+        "longest": "^1.0.1",
+        "repeat-string": "^1.5.2"
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-      "dev": true
+      "dev": true,
+      "requires": {
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+        "normalize-path": "^2.0.0"
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       "integrity": "sha1-126/jKlNJ24keja61EpLdKthGZE=",
-      "dev": true
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+      "requires": {
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       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
-      "dev": true
+      "dev": true,
+      "requires": {
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       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "arr-flatten": "^1.0.1"
+      }
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@@ -126,7 +156,10 @@
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-      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk="
+      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
+      "requires": {
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+      }
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+      "integrity": "sha512-e+lJAJeNWuPCNyxZKOBdaJGyLGHugXVQtrAwtuAe2vhxTYxFTKE73p8JuTmdH0qdQZtDvI4dhJwjZc5zsfIsYw==",
+      "requires": {
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+      }
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@@ -183,43 +219,96 @@
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       "integrity": "sha1-AnYgvuVnqIwyVhV05/0IAdMxGOQ=",
-      "dev": true
+      "dev": true,
+      "requires": {
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+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.0"
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       "integrity": "sha1-fdQrBGPHQunVKW3rPsZ6kyLa1yk=",
-      "dev": true
+      "dev": true,
+      "requires": {
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+        "babel-generator": "^6.25.0",
+        "babel-helpers": "^6.24.1",
+        "babel-messages": "^6.23.0",
+        "babel-register": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.25.0",
+        "babel-traverse": "^6.25.0",
+        "babel-types": "^6.25.0",
+        "babylon": "^6.17.2",
+        "convert-source-map": "^1.1.0",
+        "debug": "^2.1.1",
+        "json5": "^0.5.0",
+        "lodash": "^4.2.0",
+        "minimatch": "^3.0.2",
+        "path-is-absolute": "^1.0.0",
+        "private": "^0.1.6",
+        "slash": "^1.0.0",
+        "source-map": "^0.5.0"
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       "integrity": "sha1-M6GvcNXyiQrrRlpKd5PB32qeqfw=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.25.0",
+        "detect-indent": "^4.0.0",
+        "jsesc": "^1.3.0",
+        "lodash": "^4.2.0",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
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       "integrity": "sha1-NHHenK7DiOXIUOWX5Yom3fN2ArI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
+      }
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       "resolved": "https://registry.npmjs.org/babel-jest/-/babel-jest-19.0.0.tgz",
       "integrity": "sha1-WTI87ZmjqE01naIZyogQdP/Gzj8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-core": "^6.0.0",
+        "babel-plugin-istanbul": "^4.0.0",
+        "babel-preset-jest": "^19.0.0"
+      }
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     "babel-messages": {
       "version": "6.23.0",
       "resolved": "https://registry.npmjs.org/babel-messages/-/babel-messages-6.23.0.tgz",
       "integrity": "sha1-8830cDhYA1sqKVHG7F7fbGLyYw4=",
-      "dev": true
+      "dev": true,
+      "requires": {
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     "babel-plugin-istanbul": {
       "version": "4.1.4",
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       "integrity": "sha1-GN3oS/POMp/d8/QQP66SFFbY5Yc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "find-up": "^2.1.0",
+        "istanbul-lib-instrument": "^1.7.2",
+        "test-exclude": "^4.1.1"
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@@ -231,37 +320,77 @@
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       "integrity": "sha1-ItZyAdAjJKGVgRKI6zgpS7PKw5Y=",
-      "dev": true
+      "dev": true,
+      "requires": {
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+      }
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       "integrity": "sha1-fhDhOi9xBlvfrVoXh7pFvKbe118=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-core": "^6.24.1",
+        "babel-runtime": "^6.22.0",
+        "core-js": "^2.4.0",
+        "home-or-tmp": "^2.0.0",
+        "lodash": "^4.2.0",
+        "mkdirp": "^0.5.1",
+        "source-map-support": "^0.4.2"
+      }
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       "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-6.26.0.tgz",
       "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
-      "dev": true
+      "dev": true,
+      "requires": {
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+        "regenerator-runtime": "^0.11.0"
+      }
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       "resolved": "https://registry.npmjs.org/babel-template/-/babel-template-6.25.0.tgz",
       "integrity": "sha1-ZlJBFmt8KqTGGdceGSlpVSsQwHE=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-runtime": "^6.22.0",
+        "babel-traverse": "^6.25.0",
+        "babel-types": "^6.25.0",
+        "babylon": "^6.17.2",
+        "lodash": "^4.2.0"
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       "version": "6.25.0",
       "resolved": "https://registry.npmjs.org/babel-traverse/-/babel-traverse-6.25.0.tgz",
       "integrity": "sha1-IldJfi/NGbie3BPEyROB+VEklvE=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "babel-code-frame": "^6.22.0",
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.22.0",
+        "babel-types": "^6.25.0",
+        "babylon": "^6.17.2",
+        "debug": "^2.2.0",
+        "globals": "^9.0.0",
+        "invariant": "^2.2.0",
+        "lodash": "^4.2.0"
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       "integrity": "sha1-cK+ySNVmDl0Y+BHZHIMDtUE0oY4=",
-      "dev": true
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+      "requires": {
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+        "esutils": "^2.0.2",
+        "lodash": "^4.2.0",
+        "to-fast-properties": "^1.0.1"
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@@ -279,7 +408,10 @@
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       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
       "dev": true,
-      "optional": true
+      "optional": true,
+      "requires": {
+        "tweetnacl": "^0.14.3"
+      }
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@@ -290,24 +422,39 @@
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-      "dev": true
+      "dev": true,
+      "requires": {
+        "hoek": "2.x.x"
+      }
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-      "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI="
+      "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
+      "requires": {
+        "balanced-match": "^1.0.0",
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       "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
-      "dev": true
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+      "requires": {
+        "expand-range": "^1.8.1",
+        "preserve": "^0.2.0",
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       "integrity": "sha1-j/CbCixCFxihBRwmCzLkj0QpOM4=",
       "dev": true,
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-      "dev": true
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-      "dev": true
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       "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
       "dev": true,
-      "optional": true
+      "optional": true,
+      "requires": {
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       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
-      "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg="
+      "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+      "requires": {
+        "ansi-styles": "^2.2.1",
+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
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-      "integrity": "sha1-gFeoKwD1P4Kl1ixQ74z/3sb6vDQ="
+      "integrity": "sha1-gFeoKwD1P4Kl1ixQ74z/3sb6vDQ=",
+      "requires": {
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+      }
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@@ -395,12 +562,18 @@
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-      "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc="
+      "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=",
+      "requires": {
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       "resolved": "https://registry.npmjs.org/cli-table/-/cli-table-0.3.1.tgz",
-      "integrity": "sha1-9TsFJmqLGguTSz0IIebi3FkUriM="
+      "integrity": "sha1-9TsFJmqLGguTSz0IIebi3FkUriM=",
+      "requires": {
+        "colors": "1.0.3"
+      }
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@@ -413,6 +586,11 @@
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-      "integrity": "sha1-pikNQT8hemEjL5XkWP84QYz7ARc="
+      "integrity": "sha1-pikNQT8hemEjL5XkWP84QYz7ARc=",
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+      "integrity": "sha1-Gsz5fdc5uYO/mU1W/sj5WFNkG3o=",
+      "requires": {
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-      "dev": true
+      "dev": true,
+      "requires": {
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+      "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
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+        "readable-stream": "^2.2.2",
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+      "integrity": "sha1-Br56vvlHo/FKMP1hBnHUAbyot7Y=",
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+      "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
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-      "dev": true
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+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
         },
         "supports-color": {
           "version": "4.2.1",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.2.1.tgz",
           "integrity": "sha512-qxzYsob3yv6U+xMzPrv170y8AwGP7i74g+pbixCfD6rgso8BscLT2qXIuz6TpOaiJZ3mFgT5O9lyT9nMU4LfaA==",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "has-flag": "^2.0.0"
+          }
         },
         "tmp": {
           "version": "0.0.31",
           "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.31.tgz",
           "integrity": "sha1-jzirlDjhcxXl29izZX6L+yd65Kc=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "os-tmpdir": "~1.0.1"
+          }
         },
         "untildify": {
           "version": "3.0.2",
@@ -3815,6 +5566,21 @@
           "resolved": "https://registry.npmjs.org/yeoman-environment/-/yeoman-environment-2.0.2.tgz",
           "integrity": "sha512-IBcO0teNEv0gMEQ+u2LZRKgcyGlaW50QMzc3IrFNrAjY08iuF+AH8LlDK5XqNz9iWT5czSCij/1tt+DAYFk8uQ==",
           "dev": true,
+          "requires": {
+            "chalk": "^1.0.0",
+            "debug": "^2.0.0",
+            "diff": "^3.2.0",
+            "escape-string-regexp": "^1.0.2",
+            "globby": "^6.1.0",
+            "grouped-queue": "^0.3.0",
+            "inquirer": "^3.0.1",
+            "is-scoped": "^1.0.0",
+            "lodash": "^4.11.1",
+            "log-symbols": "^1.0.1",
+            "mem-fs": "^1.1.0",
+            "text-table": "^0.2.0",
+            "untildify": "^3.0.2"
+          },
           "dependencies": {
             "ansi-regex": {
               "version": "2.1.1",
@@ -3832,13 +5598,23 @@
               "version": "1.1.3",
               "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
               "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
-              "dev": true
+              "dev": true,
+              "requires": {
+                "ansi-styles": "^2.2.1",
+                "escape-string-regexp": "^1.0.2",
+                "has-ansi": "^2.0.0",
+                "strip-ansi": "^3.0.0",
+                "supports-color": "^2.0.0"
+              }
             },
             "strip-ansi": {
               "version": "3.0.1",
               "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
               "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-              "dev": true
+              "dev": true,
+              "requires": {
+                "ansi-regex": "^2.0.0"
+              }
             },
             "supports-color": {
               "version": "2.0.0",
@@ -3854,11 +5630,25 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/yosay/-/yosay-2.0.1.tgz",
       "integrity": "sha512-hN+Ft6X4Fq1uiguexEthlb6ba/RCx2DGF8fznsS166MDWbT7BzUxAJUOYnVMn+YdDE5VDMuRrkGFkUOdu5hvbA==",
+      "requires": {
+        "ansi-regex": "^2.0.0",
+        "ansi-styles": "^3.0.0",
+        "chalk": "^1.0.0",
+        "cli-boxes": "^1.0.0",
+        "pad-component": "0.0.1",
+        "string-width": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "taketalk": "^1.0.0",
+        "wrap-ansi": "^2.0.0"
+      },
       "dependencies": {
         "ansi-styles": {
           "version": "3.2.0",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
-          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug=="
+          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
         },
         "is-fullwidth-code-point": {
           "version": "2.0.0",
@@ -3869,6 +5659,10 @@
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
           "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          },
           "dependencies": {
             "ansi-regex": {
               "version": "3.0.0",
@@ -3878,7 +5672,10 @@
             "strip-ansi": {
               "version": "4.0.0",
               "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
-              "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8="
+              "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+              "requires": {
+                "ansi-regex": "^3.0.0"
+              }
             }
           }
         }
diff --git a/generator-exercise/package.json b/generator-exercise/package.json
index 1a1235a..6efdc2e 100644
--- a/generator-exercise/package.json
+++ b/generator-exercise/package.json
@@ -26,8 +26,9 @@
     "jest-cli": "^20.0.0"
   },
   "dependencies": {
-    "yeoman-generator": "^1.0.0",
     "chalk": "^1.1.3",
+    "extend": "^3.0.2",
+    "yeoman-generator": "^1.0.0",
     "yosay": "^2.0.0"
   },
   "jest": {