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

[Q]: Sentence: 'adults with helmets sitting on tricycles made for children'. How many words contain the letter 'r' in the sentence.
[A]: 3


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


[Q]: Sentence: 'a line of people fill their plates with food on a long table'. How many words contain the letter 'v' in the sentence.
[A]:
0