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

Ex Input:
Sentence: 'A bike stands alone beside a rock wall'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A picture of some people and some animals'. Count the number of verbs in this sentence.

Ex Output:
0


Ex Input:
Sentence: 'People watching kite surfers skim the waves on a sunny day'. Count the number of verbs in this sentence.

Ex Output:

2