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

[EX Q]: Sentence: 'a man rides a black motorcycle around a curve'. How many words contain the letter 'y' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'child standing in front of a stop sign on a suburban street corner'. How many words contain the letter 'u' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'the people are playing frisbee in the park'. How many words contain the letter 'm' in the sentence.
[EX A]:
0