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

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

[EX Q]: Sentence: 'a man in a suit with his finger in his ear'. How many words contain the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'snow is flying while a person skis with trees in the background'. How many words contain the letter 'q' in the sentence.
[EX A]:
0