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

Example Input: Sentence: 'Nighttime lights and traffic along a city street'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A blue and silver motorcycle parked on a beach'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A couple of women chasing after a frisbee on a field'. Count the number of verbs in this sentence.
Example Output:
1