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

Ex Input:
Sentence: 'a white horse is gazing across the field'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Several people in beach chars while two children fly a kite on the sea shore'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Fresh pizza and wine on an outdoor table'. Count the number of verbs in this sentence.

Ex Output:

0