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

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

Example Input: Sentence: 'A purple pickup truck parked at a gasoline pump'. Count the number of nouns in this sentence.
Example Output:
4