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

[Q]: Sentence: 'a plastic container filled with pastry balls sitting on a counter'. How many words contain the letter 'q' in the sentence.
[A]: 0

[Q]: Sentence: 'trash cans and a fire hydrant are on the curb of a sidewalk'. How many words contain the letter 'u' in the sentence.
[A]: 1

[Q]: Sentence: 'a man on water skis prepares to jump the pole'. How many words contain the letter 'x' in the sentence.
[A]:
0