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

Ex Input:
Sentence: 'The busy street is crowded with people near tall buildings'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A clock on a red building letting people know the time'. Count the number of verbs in this sentence.

Ex Output:
2


Ex Input:
Sentence: 'A man is riding a surfboard in the ocean'. Count the number of nouns in this sentence.

Ex Output:

3