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

Sentence: 'some people standing around a line of tennis courts'. How many words contain the letter 'c' in the sentence.
1

Sentence: 'a batter sings his bat at a baseball game'. How many words contain the letter 'h' in the sentence.
1

Sentence: 'man and woman in wet suits surfing on small wave'. How many words contain the letter 's' in the sentence.

3