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

[EX Q]: Sentence: 'watchful raptor standing on one foot on a rock pile'. How many words contain the letter 'r' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'unusual round vase with flower stems inside it'. How many words contain the letter 'c' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'an suv towing a trailer displaying an acrobatic airplane'. How many words contain the letter 'o' in the sentence.
[EX A]:
2