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

Example Input: Sentence: 'There is a person with a frisbee sitting by the water'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A tall giraffe standing alone in a forest'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A single surfboarder surfs on a small wave'. Count the number of nouns in this sentence.
Example Output:
2