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

Example Input: Sentence: 'A person holding a bottle while riding a skateboard'. Count the number of verbs in this sentence.
Example Output: 2

Example Input: Sentence: 'Brown bear sitting on the ground eating a stick'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A smiling child surrounded by numerous stuffed animals'. Count the number of verbs in this sentence.
Example Output:
3