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

Example Input: Sentence: 'A yellow fire hydrant sitting next to a manhole with steam pouring out of it'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'View of a kitchen with man and dog inside of it'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'A street sign on a post with buildings in the background'. Count the number of verbs in this sentence.
Example Output:
0