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

[Q]: Sentence: 'man and woman posing for picture before prom'. How many words contain the letter 'c' in the sentence.
[A]: 1


[Q]: Sentence: 'snow boarder in midflight inverted with a steep snowy slope in the background'. How many words contain the letter 'j' in the sentence.
[A]: 0


[Q]: Sentence: 'a man who is playing tennis on a tennis court'. How many words contain the letter 'r' in the sentence.
[A]:
1