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

[EX Q]: Sentence: 'some kids are all taking a photograph together'. How many words contain the letter 'e' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a bed has an empty bag and folded laundry stacked on it'. How many words contain the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'the tv is setting half in the street and half on the curb'. How many words contain the letter 'u' in the sentence.
[EX A]:
1