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

Example Input: Sentence: 'One person tossing a frisbee to another person in front of some trees'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A young man riding a skateboard down a railing'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'Cutting board on table with chopped vegetables and jar of dressing'. Count the number of verbs in this sentence.
Example Output:
3