diff --git a/Essential/networkgraphprob.ipynb b/Essential/networkgraphprob.ipynb
index cf832de..32186f8 100644
--- a/Essential/networkgraphprob.ipynb
+++ b/Essential/networkgraphprob.ipynb
@@ -1,5 +1,18 @@
 {
  "cells": [
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### What are the vertices? <br />\n",
+    "ANS : V = product_name (food product) <br />\n",
+    "### What are the edges? Are they directed or undirected? <br />\n",
+    "ANS :  E = Undirected (Relation of similarities between food)<br />\n",
+    "### Do the vertices and/or edges have associated values (“weights”, “distances”, etc.) and if so, what are <br />\n",
+    "ANS : Weights = Simlarities scores<br />"
+   ]
+  },
   {
    "attachments": {},
    "cell_type": "markdown",