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

Ex Input:
Sentence: 'Two people riding a surfboard in the open waves'. Count the number of nouns in this sentence.

Ex Output:
3


Ex Input:
Sentence: 'A large white polar bear eating a carrot'. Count the number of verbs in this sentence.

Ex Output:
1


Ex Input:
Sentence: 'Three people are sitting in a room on laptops'. Count the number of verbs in this sentence.

Ex Output:

1