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

[EX Q]: Sentence: 'a bottle of beer and a red plate of food'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a group of bears sitting next to each other on a sidewalk'. How many words contain the letter 't' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a small jet air plane taxiing down the runway at an airport'. How many words contain the letter 'j' in the sentence.
[EX A]:
1