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

[EX Q]: Sentence: 'a apple that is sitting on top of a knife'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a commuter train near a platform with no one on it'. How many words contain the letter 'z' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a cake is shaped like a white suitcase'. How many words contain the letter 'x' in the sentence.
[EX A]:
0