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 clothing line with teddy bears hung by their ears'. How many words contain the letter 'n' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a woman in glasses and a black shirt next to clock'. How many words contain the letter 'q' in the sentence.
[EX A]:
0