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

Example Input: Sentence: 'People walking across an intersection in the city'. Count the number of nouns in this sentence.
Example Output: 3

Example Input: Sentence: 'A luxurious spa area with a tub and seating area'. Count the number of nouns in this sentence.
Example Output: 5

Example Input: Sentence: 'a group of people standing on a lush green field flying kites'. Count the number of verbs in this sentence.
Example Output:
2