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

Input: Consider Input: Sentence: 'a long tower on top of a white building'. Count the number of verbs in this sentence.

Output: 0

Input: Consider Input: Sentence: 'A group of men leaning over rail as a dog approaches them'. Count the number of verbs in this sentence.

Output: 2

Input: Consider Input: Sentence: 'This is a very clean bathroom with a tub in the center'. Count the number of verbs in this sentence.
Output: 0