USEFUL LINKES-
https://www.google.co.in/amp/s/www.geeksforgeeks.org/get-synonymsantonyms-nltk-wordnet-python/amp/
https://www.google.co.in/amp/s/www.geeksforgeeks.org/tokenize-text-using-nltk-python/amp/ https://pythonprogramming.net/wordnet-nltk-tutorial/ https://pythonprogramming.net/tokenizing-words-sentences-nltk-tutorial/ http://insightsbot.com/blog/R8fu5/bag-of-words-algorithm-in-python-introduction