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

Example Input: Sentence: 'A person sitting on a couch with a laptop'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A person holding a bottle while riding a skateboard'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'Some birds that are standing on some debris in water'. Count the number of nouns in this sentence.
Example Output:
3