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

Ex Input:
Sentence: 'The three giraffes are being kept indoors for being to see'. Count the number of verbs in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A lady at an intersection on her bicycle, waiting for the traffic light to change'. Count the number of verbs in this sentence.

Ex Output:
2


Ex Input:
Sentence: 'A group of kids on skateboards on a ramp'. Count the number of verbs in this sentence.

Ex Output:

0