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

Example Input: Sentence: 'A cat that is laying down on a bed'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A barge floating down a river towards a city'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A man and a woman sitting on a green bench next to eachother and a red backpack and black handbag next to them on the bench'. Count the number of verbs in this sentence.
Example Output:
1