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

Example Input: Sentence: 'A group of men sitting next to each other on a bench'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'Two people riding a surfboard in the open waves'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A bunch of people walking on the street with umbrellas'. Count the number of nouns in this sentence.
Example Output:
4