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a. build_word_dictionary (filename) – This builds a worddictionary indexed by words from the file who’s filename isprovided as an argument. It uses the words as keys and the count ofoccurrences as values. It returns the dictionary it constructed. Itcan use the ‘tokenize()’ function that is provided in the lectureslides.
b. inverse_dict(dict) – This method takes a dictionary(generated by build_word_dictionary() and inverts it (as was donewith students and majors in the lecture slides). The count ofoccurrences should now be the key. The values will be a list ofwords that occurred that many times. This method returns a
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