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

[Q]: Sentence: 'man in blue shirt hitting a tennis ball back'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'a person that is fixing a pillow on a couch'. How many words contain the letter 's' in the sentence.
[A]: 2


[Q]: Sentence: 'a flat screen tv sitting on top of a wooden shelf'. How many words contain the letter 'o' in the sentence.
[A]:
4