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

[EX Q]: Sentence: 'a living room filled with furniture and a large wooden shelf'. How many words contain the letter 'e' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'a little boy learning to throw a frisbee'. How many words contain the letter 'h' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'empty boxcars sit alongside the tracks at a train yard'. How many words contain the letter 'q' in the sentence.
[EX A]:
0