instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'a plate has many different types of food on it'. How many words contain the letter 'r' in the sentence.
answer:
1


question:
Sentence: 'a young girl plays tennis in a court with grass in the cracks'. How many words contain the letter 'w' in the sentence.
answer:
1


question:
Sentence: 'a group of skateboarders using the bench at a park'. How many words contain the letter 'u' in the sentence.
answer:

2