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

[EX Q]: Sentence: 'a group of people on a beach beneath a cloudy sky'. How many words contain the letter 'g' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a young man wearing a red tie sitting next to a cat'. How many words contain the letter 'h' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a train track and a train in winter'. How many words contain the letter 'e' in the sentence.
[EX A]:
1