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

Example Input: Sentence: 'There is a close up view of a sandwich that is not eaten'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A bid walking on a stream of water next to green plants'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'Man looking at his reflection in a bathroom mirror while shaving'. Count the number of verbs in this sentence.
Example Output:
2