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

Example Input: Sentence: 'A cat sitting next to a pair of legs on the ground'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'A group of people flying kites in a field'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A giraffe standing in a dry grass field'. Count the number of verbs in this sentence.
Example Output:
1