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

[EX Q]: Sentence: 'a boy is doing a trick with his skateboard'. How many words contain the letter 'y' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a plate with a grilled sanwich next to a bowl of tomato soup'. How many words contain the letter 'a' in the sentence.
[EX A]: 6

[EX Q]: Sentence: 'a bunch of cross country skiers going down a trail'. How many words contain the letter 'd' in the sentence.
[EX A]:
1