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

[Q]: Sentence: 'a large red sign on a metal pole'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'bus parked next to a side walk on the road'. How many words contain the letter 'd' in the sentence.
[A]: 3


[Q]: Sentence: 'giraffe and zebra in a grass and tree area of animal park with parked cars'. How many words contain the letter 'w' in the sentence.
[A]:
1