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

Example Input: Sentence: 'A group of men leaning over rail as a dog approaches them'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'A street has a traffic light, a parked bicycle, and a car on it'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'Some sort of a blue sofa sits in a small room; a mirror and a picture hang above it'. Count the number of nouns in this sentence.
Example Output:
5