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

Example Input: Sentence: 'A young man riding a skateboard down a railing'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'Various street signs that read Danforth avenue'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A jockey sitting on a horse while several kids reach up to pet it'. Count the number of nouns in this sentence.
Example Output:
3