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

[EX Q]: Sentence: 'a young man standing in front of a laptop computer'. How many words contain the letter 'y' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man skiing through a snowcovered street area'. How many words contain the letter 'p' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a group of fans clap and take pictures at the game'. How many words contain the letter 'r' in the sentence.
[EX A]:
2