diff --git a/week1/week1-MultilabelClassification.ipynb b/week1/week1-MultilabelClassification.ipynb
index 96ef529d..f91a7606 100644
--- a/week1/week1-MultilabelClassification.ipynb
+++ b/week1/week1-MultilabelClassification.ipynb
@@ -35,7 +35,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
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    "source": [
@@ -58,7 +61,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
@@ -69,7 +75,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
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@@ -94,13 +103,17 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
     "import nltk\n",
     "nltk.download('stopwords')\n",
-    "from nltk.corpus import stopwords"
+    "from nltk.corpus import stopwords\n",
+    "nltk.download('punkt') "
    ]
   },
   {
@@ -114,7 +127,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -127,7 +143,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -141,7 +160,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -154,7 +176,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
    },
    "outputs": [],
    "source": [
@@ -179,7 +204,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
@@ -201,7 +229,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
@@ -212,7 +243,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
@@ -237,7 +271,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
+     "outputs_hidden": true
+    }
    },
    "outputs": [],
    "source": [
@@ -256,7 +293,10 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -274,7 +314,10 @@
    "cell_type": "code",
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -298,7 +341,10 @@
    "cell_type": "code",
    "execution_count": null,
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -311,7 +357,10 @@
    "cell_type": "code",
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -331,7 +380,10 @@
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -361,7 +413,10 @@
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+    "collapsed": true,
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+    }
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@@ -421,7 +476,10 @@
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+    "collapsed": true,
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@@ -448,7 +506,10 @@
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+    "collapsed": true,
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@@ -466,7 +527,10 @@
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+    "collapsed": true,
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@@ -484,7 +548,10 @@
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+    "collapsed": true,
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@@ -495,7 +562,10 @@
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+    "collapsed": true,
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@@ -525,7 +595,10 @@
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+    "collapsed": true,
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@@ -550,7 +623,10 @@
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+    "collapsed": true,
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@@ -561,7 +637,10 @@
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+    "collapsed": true,
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@@ -597,7 +676,10 @@
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+    "collapsed": true,
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@@ -609,7 +691,10 @@
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+    "collapsed": true,
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@@ -634,7 +719,10 @@
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -654,7 +742,10 @@
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -665,7 +756,10 @@
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -685,7 +779,10 @@
    "cell_type": "code",
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -697,7 +794,10 @@
    "cell_type": "code",
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -726,7 +826,10 @@
    "cell_type": "code",
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -745,7 +848,10 @@
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    "metadata": {
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -767,7 +873,10 @@
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -807,7 +916,10 @@
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+    "collapsed": true,
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@@ -832,7 +944,10 @@
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+    "collapsed": true,
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+    }
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@@ -847,7 +962,10 @@
    "cell_type": "code",
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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@@ -871,7 +989,10 @@
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+    "collapsed": true,
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+    }
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@@ -883,7 +1004,10 @@
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    "metadata": {
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -895,7 +1019,10 @@
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -918,7 +1045,10 @@
    "cell_type": "code",
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -938,7 +1068,10 @@
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -974,7 +1107,10 @@
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -1007,7 +1143,10 @@
    "cell_type": "code",
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -1028,7 +1167,10 @@
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    "metadata": {
-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -1039,7 +1181,10 @@
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-    "collapsed": true
+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -1059,7 +1204,10 @@
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+    "collapsed": true,
+    "jupyter": {
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+    }
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@@ -1083,9 +1231,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.4.3"
+   "version": "3.7.6"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }