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

Example Input: Sentence: 'A hand holding a partially eaten doughnut hole'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A grandfather clock next to wall with windows and paintings'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A man riding a white horse on a sandy beach'. Count the number of nouns in this sentence.
Example Output:
3