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

Sentence: 'a big sign that is lit up near some buildings'. How many words contain the letter 'r' 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: 'a man standing on top of a tennis court holding a racquet'. How many words contain the letter 'x' in the sentence.

0