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

[EX Q]: Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a group of people dressed to ski standing in the snow'. How many words contain the letter 'b' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'there is a white lap top that is on the wood table'. How many words contain the letter 'u' in the sentence.
[EX A]:
0