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

Example Input: Sentence: 'there are five people on surf boards in the ocean'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'Multiple goats stand atop a grassy hill with a tree'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A group of people laugh while sitting around a table looking at an open laptop'. Count the number of verbs in this sentence.
Example Output:
3