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

Example Input: Sentence: 'People are playing in the water in front of some hills'. Count the number of nouns in this sentence.
Example Output: 4

Example Input: Sentence: 'Several people in beach chars while two children fly a kite on the sea shore'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A healthy meal with various vegetables on a plate'. Count the number of verbs in this sentence.
Example Output:
0