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

Input: Consider Input: Sentence: 'A man on skies going through the woods'. Count the number of verbs in this sentence.

Output: 1


Input: Consider Input: Sentence: 'Street signs with a cartoon policeman in Shanghai'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'a girl entering a train waiving goodbye during the day'. Count the number of verbs in this sentence.


Output: 2