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

Example Input: Sentence: 'A bike stands alone beside a rock wall'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'a couple of kids are playing a soccer game'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A woman is swinging a wooden stick while a man watches'. Count the number of verbs in this sentence.
Example Output:
2