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

Ex Input:
Sentence: 'A man flying through the air while riding skis'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A man sitting at a table in front of a laptop computer'. Count the number of nouns in this sentence.

Ex Output:
5


Ex Input:
Sentence: 'A white plate topped with a pile of food'. Count the number of nouns in this sentence.

Ex Output:

3