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

Input: Consider Input: Sentence: 'A cat with a serious look on its face sitting on a bed'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'Many baskets are stacked on the table beside flowers'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'A group of people march across a field with a red flag'. Count the number of verbs in this sentence.


Output: 1