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

Example Input: Sentence: 'A young teenager in glasses smiles while brushing her teeth'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'a cat siting next to a chair on a porch'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A haw sits perched on top of a bench in the woods'. Count the number of verbs in this sentence.
Example Output:
2