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

Ex Input:
Sentence: 'a group of people playing soccer on a field of grass'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A train on a track in the middle of a neighborhood'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'A man on a court with a tennis racket'. Count the number of nouns in this sentence.

Ex Output:

4