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

Example Input: Sentence: 'A baseball player holding a bat over home plate'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A cat with a serious look on its face sitting on a bed'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A flat screen TV sitting up against a wall'. Count the number of verbs in this sentence.
Example Output:
1