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

Ex Input:
Sentence: 'A black horse that is tied up eating grass'. Count the number of nouns in this sentence.

Ex Output:
2


Ex Input:
Sentence: 'The players are playing a game of Frisbee on the grass'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'a mailbox on the sidewalk decorated to look like R2D2'. Count the number of nouns in this sentence.

Ex Output:

2