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

Example Input: Sentence: 'A group of men going up for a frisbee'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'a couple people that are walking across the road'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A herd of giraffe standing on top of a lush green hill'. Count the number of verbs in this sentence.
Example Output:
1