Please answer following questions along with Python code and its result. Make sure to import NLTK.

1. What is the number of noun synsets have no hyponyms? You can get all noun synsets using wn.all_synsets('n').

from nltk.corpus import wordnet as wn

2. Write a program to find all words that occur at least fourty times in the Brown Corpus.

Hint: use FreqDist of NLTK

from nltk.corpus import brown

3. Write a program to generate a table of lexical diversity scores (i.e., token/type ratios), as we saw in Table 1-1. Include the full set of Brown Corpus genres. (nltk.corpus.brown.categories()). Which genre has the lowest diversity (greatest number of tokens per type)?

for category in nltk.corpus.brown.categories():

fill the rest please delete this line