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

[Q]: Sentence: 'a person holds a video game remote as another man looks on'. How many words contain the letter 'g' in the sentence.
[A]: 1


[Q]: Sentence: 'a airplane is seen at the airport with other airplanes'. How many words contain the letter 'z' in the sentence.
[A]: 0


[Q]: Sentence: 'holding a train brochure in front of trains'. How many words contain the letter 'a' in the sentence.
[A]:
3