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

Example Input: Sentence: 'The busy street is crowded with people near tall buildings'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A tall  giraffe standing alone in a forest'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'Some fruit and flowers sit above a desk with a laptop'. Count the number of nouns in this sentence.
Example Output:
4