diff --git a/index.ipynb b/index.ipynb
index 09570b281..ffa23c0b3 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -70,9 +70,7 @@
    "execution_count": 1,
    "metadata": {},
    "outputs": [],
-   "source": [
-    "friends = {'name': 'Friends', 'genre': 'sitcom', 'no_of_seasons': 10}"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -212,27 +210,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
-   "source": [
-    "friends[14] = 'some value'"
-   ]
+   "source": []
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "'some value'"
-      ]
-     },
-     "execution_count": 8,
-     "metadata": {},
-     "output_type": "execute_result"
+     "ename": "NameError",
+     "evalue": "name 'friends' is not defined",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m\u001b[0m",
+      "\u001b[0;31mNameError\u001b[0mTraceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-1-dca94740e956>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mfriends\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m14\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;31mNameError\u001b[0m: name 'friends' is not defined"
+     ]
     }
    ],
    "source": [
@@ -288,9 +285,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "friends"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -311,9 +306,7 @@
    "execution_count": 11,
    "metadata": {},
    "outputs": [],
-   "source": [
-    "creators = ['David Crane', 'Marta Kauffman']"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -463,7 +456,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "seinfeld = {'name': 'Seinfeld', 'creators': ['Larry David', 'Jerry Seinfeld'], 'genre': 'sitcom', 'no_of_seasons': 10, 'no_of_episodes': 180}"
+    "}"
    ]
   },
   {
@@ -486,9 +479,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "seinfeld"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -522,10 +513,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "tv_shows = [friends, seinfeld]\n",
-    "tv_shows"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -585,9 +573,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "tv_shows[1]['creators']"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -612,9 +598,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "tv_shows[1]['creators'][1]"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -639,10 +623,7 @@
      "output_type": "execute_result"
     }
    ],
-   "source": [
-    "jerry = tv_shows[1]['creators'][1]\n",
-    "jerry"
-   ]
+   "source": []
   },
   {
    "cell_type": "markdown",
@@ -688,7 +669,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.5"
+   "version": "3.6.9"
   }
  },
  "nbformat": 4,