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

[Q]: Sentence: 'unusual round vase with flower stems inside it'. How many words contain the letter 'c' in the sentence.
[A]: 0


[Q]: Sentence: 'a pile of stuffed brown teddy bears wearing clothing'. How many words contain the letter 'w' in the sentence.
[A]: 2


[Q]: Sentence: 'a man who is leaning against a wall near 2 british style telephone booths'. How many words contain the letter 't' in the sentence.
[A]:
5