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

[EX Q]: Sentence: 'a group of men sitting by tables working on laptops'. How many words contain the letter 'l' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a couple is fast asleep at 3 in the morning'. How many words contain the letter 'y' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a skate boarder skating at a skate park and doing a trick'. How many words contain the letter 'f' in the sentence.
[EX A]:
0