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

[EX Q]: Sentence: 'black and white photograph of a man using a cell phone on the street'. How many words contain the letter 'r' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a pair of people swimming out to sea on some surfboards'. How many words contain the letter 'j' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a couple of people sitting on top of a brown couch in front of a tv'. How many words contain the letter 'j' in the sentence.
[EX A]:
0