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

[Q]: Sentence: 'a gray cat is wearing a santa hat'. How many words contain the letter 'm' in the sentence.
[A]: 0


[Q]: Sentence: 'a stop sign with some words beneath it'. How many words contain the letter 't' in the sentence.
[A]: 4


[Q]: Sentence: 'a man carrying a surfboard down the side of a hill'. How many words contain the letter 'u' in the sentence.
[A]:
1