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

Input: Consider Input: Sentence: 'A man playing  a game of tennis hitting a ball'. Count the number of verbs in this sentence.

Output: 2


Input: Consider Input: Sentence: 'Store front on an old narrow city street with cars on it'. Count the number of verbs in this sentence.

Output: 0


Input: Consider Input: Sentence: 'Two hot dogs with chili, cheese and tomatoes'. Count the number of verbs in this sentence.


Output: 0