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

Ex Input:
Sentence: 'There is a person with a frisbee sitting by the water'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A boy doing a trick with a skateboard on a ramp'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A yellow double decker bus parked next to a beach'. Count the number of verbs in this sentence.

Ex Output:

1