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

Ex Input:
Sentence: 'a street sign is displayed on a nice summer day'. Count the number of nouns in this sentence.

Ex Output:
4


Ex Input:
Sentence: 'The post on the street has a clock displayed'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A small elephant toy pushing an orange with his tusks'. Count the number of nouns in this sentence.

Ex Output:

4