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

Ex Input:
Sentence: 'A orange bus driving down the street carrying passengers'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A large cat sitting on top of a table'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Two Mallards float and drink water in a shallow pool'. Count the number of verbs in this sentence.

Ex Output:

2