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

[Q]: Sentence: 'a person standing in line for food at a food truck'. How many words contain the letter 'c' in the sentence.
[A]: 1


[Q]: Sentence: 'an airplane in the sky trailing condensation'. How many words contain the letter 'p' in the sentence.
[A]: 1


[Q]: Sentence: 'a white car is seen stopped at a stop light'. How many words contain the letter 's' in the sentence.
[A]:
4