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 sign reading butt street on the corner of a building with a no parking sign below it'. How many words contain the letter 'h' in the sentence.
[A]: 2


[Q]: Sentence: 'a clock reads almost 4 o clock on a tall tower'. How many words contain the letter 'q' in the sentence.
[A]:
0