Created on Sun Nov 13 09:14:13 2016
    @author: daxiong
    from nltk.corpus import stopwords
    from nltk.tokenize import sent_tokenize,word_tokenize
    example_text="Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice. It came as a joyous daybreak to end the long night of bad captivity."
    filtered_words=[w for w in list_words if not w in list_stopWords]```