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

Ex Input:
Sentence: 'We are looking down at the skis of a skier riding a ski lift'. Count the number of verbs in this sentence.

Ex Output:
2


Ex Input:
Sentence: 'Many baskets are stacked on the table beside flowers'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Ceramic dishes of food on a white table'. Count the number of verbs in this sentence.

Ex Output:

0