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

Example Input: Sentence: 'A woman holding a tennis racquet on a tennis court'. Count the number of nouns in this sentence.
Example Output: 5

Example Input: Sentence: 'scissors balanced on a plastic carton balanced on a shelf'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'One cat is sitting in a suitcase and the the other cat is on the bed'. Count the number of verbs in this sentence.
Example Output:
2