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

[EX Q]: Sentence: 'a man in a blue shirt and ear piece holds a clip board'. How many words contain the letter 'u' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'some girls on a soccer field playing soccer'. How many words contain the letter 'j' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a group of small children sitting next to a couch'. How many words contain the letter 'd' in the sentence.
[EX A]:
1