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

[Q]: Sentence: 'a teenager and child are fighting for a frisbee'. How many words contain the letter 'm' in the sentence.
[A]: 0


[Q]: Sentence: 'skate boarder trying to maintain his balance during stunt'. How many words contain the letter 'w' in the sentence.
[A]: 0


[Q]: Sentence: 'a motorcycle in going around a curve in the road'. How many words contain the letter 'l' in the sentence.
[A]:
1