instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man walking a horse on a dirt track'. Replace the letter 't' with 's' in the sentence.
answer:
a man walking a horse on a dirs srack


question:
Sentence: 'a fire hydrant and a rolled up fire hose'. Replace the letter 'd' with 's' in the sentence.
answer:
a fire hysrant ans a rolles up fire hose


question:
Sentence: 'the man is sleeping next to a pile of novels'. Replace the letter 'h' with 'b' in the sentence.
answer:

tbe man is sleeping next to a pile of novels