instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'people standing in a river surrounding an elephant some are touching it'. How many words contain the letter 'd' in the sentence.
answer:
2

question:
Sentence: 'a group of many horses going about in a grassy meadow'. How many words contain the letter 'f' in the sentence.
answer:
1

question:
Sentence: 'an image of a motorcycle parked in the driveway'. How many words contain the letter 'w' in the sentence.
answer:
1