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

Sentence: 'a person that is flying a hamburger kite'. How many words contain the letter 'b' in the sentence.
1

Sentence: 'a bus station full of people walking on the side walk'. How many words contain the letter 'q' in the sentence.
0

Sentence: 'the clock has been made with great detail'. How many words contain the letter 'r' in the sentence.
1