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

Ex Input:
Sentence: 'a couple people that are walking across the road'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'there is a fish eye view of a snowboarder in the air'. Count the number of nouns in this sentence.

Ex Output:
5


Ex Input:
Sentence: 'A group of men leaning over rail as a dog approaches them'. Count the number of nouns in this sentence.

Ex Output:

4