In this task, you need to count the number of words in a sentence that contain the given letter

Sentence: 'a fire hydrant on a neighborhood street with trees and shrubs around it'. How many words contain the letter 'k' in the sentence.
0

Sentence: 'a young girl plays tennis in a court with grass in the cracks'. How many words contain the letter 'w' in the sentence.
1

Sentence: 'people carrying blue surf boards down a bath to the beach'. How many words contain the letter 's' in the sentence.

2