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

[EX Q]: Sentence: 'a large clock tower under a grey cloudy sky'. How many words contain the letter 'l' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a boy in a car on a laptop'. How many words contain the letter 'j' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a woman catching a frisbee on a sunny day'. How many words contain the letter 'r' in the sentence.
[EX A]:
1