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

Ex Input:
Sentence: 'Desktop and laptop computers on a desk with a dry erase board nearby'. Count the number of nouns in this sentence.

Ex Output:
6


Ex Input:
Sentence: 'A street sign of some sort in the middle of some road'. Count the number of nouns in this sentence.

Ex Output:
5


Ex Input:
Sentence: 'Man poses for picture with his dog while sitting on a bench'. Count the number of nouns in this sentence.

Ex Output:

4