In this task, you need to count the number of nouns/verbs in the given sentence.

Ex Input:
Sentence: 'a small girl in a white shirt  sitting on a elephant statue'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'A large white polar bear eating a carrot'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Two men ski down the slope of a mountain'. Count the number of verbs in this sentence.

Ex Output:

1