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: 'You can still get tacos and burritos late at night from this truck'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'Two men sit together as they have a drink'. Count the number of nouns in this sentence.
Example Output:
2