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

Example Input: Sentence: 'A boat with emergency lights on it sitting in a harbor'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'Derek Jeter approaches the plate in a baseball game against the Giants'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'two people riding on a motorcycle with buildings in the background'. Count the number of verbs in this sentence.
Example Output:
1