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

Ex Input:
Sentence: 'A few cars in a parking next to a small green van'. Count the number of verbs in this sentence.

Ex Output:
0


Ex Input:
Sentence: 'Two sandwiches sitting on top of papers on a table'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A man wearing sweatpants throwing frisbee in a park'. Count the number of verbs in this sentence.

Ex Output:

2