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

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: 'Two boats are docked at the bank of a river'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'a couple of elephants are walking down the street'. Count the number of nouns in this sentence.

Ex Output:

3