instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a kitchen with a dining room table and a sitting area'. How many words contain the letter 'r' in the sentence.
answer:
2


question:
Sentence: 'a stop sign casting a shadow of a sign that says war'. How many words contain the letter 'y' in the sentence.
answer:
1


question:
Sentence: 'a restaurant sign hangs off the side of a large building'. How many words contain the letter 'o' in the sentence.
answer:

2