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

Ex Input:
Sentence: 'The players are playing a game of Frisbee on the grass'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'An elephant that is walking on some dirt'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A piece of paper with hears cut out laying beside ribbon and tape'. Count the number of verbs in this sentence.

Ex Output:

2