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

Example Input: Sentence: 'A boy holds a white frisbee with a purple paw print on it'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'a white horse is gazing across the field'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'what looks like a white horse standing behind a second floor window'. Count the number of verbs in this sentence.
Example Output:
2