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

Ex Input:
Sentence: 'An old cracked brick building with a clock'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'a group of people playing soccer on a field of grass'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Pairs of roller skates are piled on top of and next to a colorful backpack'. Count the number of nouns in this sentence.

Ex Output:

5