instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'closeup of two teddy bears in red scarves and a brown teddy bear'. Replace the letter 'i' with 'y' in the sentence.
answer:
closeup of two teddy bears yn red scarves and a brown teddy bear

question:
Sentence: 'a teddy bear dressed in denim is laying on a floor'. Replace the letter 'i' with 'd' in the sentence.
answer:
a teddy bear dressed dn dendm ds laydng on a floor

question:
Sentence: 'many small boats on a water at a market'. Replace the letter 'a' with 's' in the sentence.
answer:
msny smsll bosts on s wster st s msrket