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

Example Input: Sentence: 'A black horse that is tied up eating grass'. Count the number of nouns in this sentence.
Example Output: 2

Example Input: Sentence: 'A crowd of people standing around a food truck'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A row of parking meters sitting along side of a street'. Count the number of verbs in this sentence.
Example Output:
1