instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a zebra standing by a pile of large rocks'. Replace the letter 'i' with 'x' in the sentence.
answer:
a zebra standxng by a pxle of large rocks

question:
Sentence: 'a person flying through the air on the kite board'. Replace the letter 'h' with 'l' in the sentence.
answer:
a person flying tlrougl tle air on tle kite board

question:
Sentence: 'a man standing in the sand preparing to throw a red frisbee'. Replace the letter 'p' with 'k' in the sentence.
answer:
a man standing in the sand krekaring to throw a red frisbee