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

Ex Input:
Sentence: 'A modern bus parked at a station on the side of the road'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'some people and some different skateboards on display'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'a cow that is on the side of a hill'. Count the number of nouns in this sentence.

Ex Output:

3