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

Ex Input:
Sentence: 'A person is fixing a sail on a boat'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Two young people on ski mountain looking unenthused about the sport'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'An empty sign stands next to a road'. Count the number of verbs in this sentence.

Ex Output:

1