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

Input: Consider Input: Sentence: 'A person holding a bottle while riding a skateboard'. Count the number of verbs in this sentence.

Output: 2

Input: Consider Input: Sentence: 'A dog looking up at a person with a frisbee at their feet'. Count the number of verbs in this sentence.

Output: 1

Input: Consider Input: Sentence: 'A man sitting on the side of a wooden skateboard ramp'. Count the number of verbs in this sentence.
Output: 1