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

[Q]: Sentence: 'a dog jumping up and catching a frisbee in its mouth'. How many words contain the letter 'r' in the sentence.
[A]: 1


[Q]: Sentence: 'a woman on crosscountry skiing through a wooded trail'. How many words contain the letter 'q' in the sentence.
[A]: 0


[Q]: Sentence: 'older man rides on a carriage pulled by two horses'. How many words contain the letter 'q' in the sentence.
[A]:
0