instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'small kit bathroom sink with purple walls and lights on it'. Replace the letter 'o' with 'r' in the sentence.
answer:
small kit bathrrrm sink with purple walls and lights rn it


question:
Sentence: 'a small bird perched on some thin branches'. Replace the letter 'a' with 'f' in the sentence.
answer:
f smfll bird perched on some thin brfnches


question:
Sentence: 'a young boy admiring a toy railroad display'. Replace the letter 'r' with 'm' in the sentence.
answer:

a young boy admiming a toy mailmoad display