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: 'two cats stand beside a pink door and potted plants'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an airplane standing still on the runway at the airport'. How many words contain the letter 'h' in the sentence.
[EX A]:
2