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

Example Input: Sentence: 'woman in a bikini surfing on a yellow surfboard'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A red fire hydrant sits in the forest'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A group of men leaning over rail as a dog approaches them'. Count the number of verbs in this sentence.
Example Output:
2