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

Example Input: Sentence: 'A lady at an intersection on her bicycle, waiting for the traffic light to change'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'A boy in a wheel chair on a tennis court'. Count the number of nouns in this sentence.
Example Output: 5

Example Input: Sentence: 'A few sheep eating and grazing in someone's yard'. Count the number of verbs in this sentence.
Example Output:
2