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

Example Input: Sentence: 'A toilet is on the road by a truck'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'a small black dog is playing with a green toy'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'Woman in a black jacket sitting on a park bench'. Count the number of verbs in this sentence.
Example Output:
1