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

Example Input: Sentence: 'A orange bus driving down the street carrying passengers'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A woman holding a dog in front of a mirror'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A crowd of people are playing in the ocean'. Count the number of verbs in this sentence.
Example Output:
1