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

[EX Q]: Sentence: 'the view from the top of a ski slope'. How many words contain the letter 'r' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a gothic tower features a clock near a river'. How many words contain the letter 'e' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'two tennis players talking on a tennis court'. How many words contain the letter 'g' in the sentence.
[EX A]:
1