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

[EX Q]: Sentence: 'a stop sign that has been spray painted'. How many words contain the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man buttering toast in his kitchen on the counter'. How many words contain the letter 'c' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'this fridge is packed with many foods and drinks'. How many words contain the letter 'w' in the sentence.
[EX A]:
1