Question1 (Q1). Write programs in Python to process the Brown Corpus and find answers to the following questions:

(a) Which nouns are more common in their plural form, rather than their singular form? (Only consider regular plurals, formed with the {-s suffix.)

(b) Which word has the greatest number of distinct tags? What are they?

(c) How many words are ambiguous in the sense that they appear with at least two tags? (d) What percentage of word tokens in the Brown Corpus involve these ambiguous words? (e) List tags in order of decreasing frequency. What do the 20 most frequent tags represent?