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

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 dog sits on a bed next to a cellphone and a pen'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A bear stands in front of a large fallen tree'. Count the number of verbs in this sentence.
Example Output:
2