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

Ex Input:
Sentence: 'A very large elephant in a big grassy field'. Count the number of verbs in this sentence.

Ex Output:
0

Ex Input:
Sentence: 'a group of people on surf board ride on some snow'. Count the number of nouns in this sentence.

Ex Output:
5

Ex Input:
Sentence: 'A kitchen with tiled floors and walls and a small stove'. Count the number of nouns in this sentence.

Ex Output:
4