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

Ex Input:
Sentence: 'A public restroom has a stall and a urinal'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'A group of people flying kites in a field'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'a big white airplane that is on a runway'. Count the number of verbs in this sentence.

Ex Output:

1