instruction:
In this task, you need to count the number of words in a sentence that contain the given letter
question:
Sentence: 'trash cans and a fire hydrant are on the curb of a sidewalk'. How many words contain the letter 'u' in the sentence.
answer:
1


question:
Sentence: 'this bus waits at a bus station for passengers to board'. How many words contain the letter 'e' in the sentence.
answer:
1


question:
Sentence: 'bicyclist with white hat and backpack crossing the street'. How many words contain the letter 'y' in the sentence.
answer:

1