Add required import

Author: AVBelyy

week1/lemmatization_demo.ipynb

@@ -10,6 +10,35 @@
   {
    "cell_type": "code",
    "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[nltk_data] Downloading package wordnet to /Users/anton/nltk_data...\n",
+      "[nltk_data]   Package wordnet is already up-to-date!\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "import nltk\n",
+    "nltk.download('wordnet')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.608310Z",
@@ -18,13 +47,12 @@
    },
    "outputs": [],
    "source": [
-    "import nltk\n",
     "text = \"This is Andrew's text, isn't it?\""
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.633134Z",
@@ -38,7 +66,7 @@
        "['This', 'is', \"Andrew's\", 'text,', \"isn't\", 'it?']"
       ]
      },
-     "execution_count": 2,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -50,7 +78,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.647746Z",
@@ -64,7 +92,7 @@
        "['This', 'is', 'Andrew', \"'s\", 'text', ',', 'is', \"n't\", 'it', '?']"
       ]
      },
-     "execution_count": 3,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -76,7 +104,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.660827Z",
@@ -90,7 +118,7 @@
        "['This', 'is', 'Andrew', \"'\", 's', 'text', ',', 'isn', \"'\", 't', 'it', '?']"
       ]
      },
-     "execution_count": 4,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -109,7 +137,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.674332Z",
@@ -118,15 +146,15 @@
    },
    "outputs": [],
    "source": [
-    "import nltk\n",
+    "\n",
     "text = \"feet wolves cats talked\"\n",
     "tokenizer = nltk.tokenize.TreebankWordTokenizer()\n",
     "tokens = tokenizer.tokenize(text)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 7,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:27.693761Z",
@@ -140,7 +168,7 @@
        "u'feet wolv cat talk'"
       ]
      },
-     "execution_count": 6,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -152,7 +180,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 8,
    "metadata": {
     "ExecuteTime": {
      "end_time": "2017-11-05T18:16:30.840117Z",
@@ -166,7 +194,7 @@
        "u'foot wolf cat talked'"
       ]
      },
-     "execution_count": 7,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -193,7 +221,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython2",
-   "version": "2.7.14"
+   "version": "2.7.15"
   }
  },
  "nbformat": 4,