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

Ex Input:
Sentence: 'A woman riding a surfboard on top of a wave in the ocean'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A dog looking up at a person with a frisbee at their feet'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'People are playing in the water in front of some hills'. Count the number of verbs in this sentence.

Ex Output:

1