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

Input: Consider Input: Sentence: 'A young man riding a skateboard down a railing'. Count the number of nouns in this sentence.

Output: 3


Input: Consider Input: Sentence: 'Three zebra are grazing on grass in an open field'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'A room has no furniture but one bed'. Count the number of verbs in this sentence.


Output: 1