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

Ex Input:
Sentence: 'Two people on a motorcycle with another motorcycle in background'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'a person eating a hot dog next to other people'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A blue park bench is sitting near a bunch of trees'. Count the number of nouns in this sentence.

Ex Output:

4