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

Ex Input:
Sentence: 'Century old buildings stand near streets in a city'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A group of men sitting next to each other on a bench'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A girl is sitting at a table eating dunkin donuts'. Count the number of verbs in this sentence.

Ex Output:

2