instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'the man is skiing fast in the snow'. Replace the letter 'o' with 'x' in the sentence.
answer:
the man is skiing fast in the snxw

question:
Sentence: 'the tennis player throws her racket in celebration'. Replace the letter 't' with 'l' in the sentence.
answer:
lhe lennis player lhrows her rackel in celebralion

question:
Sentence: 'a dog with a mouse pad on it is lying on a desk'. Replace the letter 'w' with 'u' in the sentence.
answer:
a dog uith a mouse pad on it is lying on a desk