In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a man is posing in a desert, leaning on a sign with an image of a camel on it'. Replace the letter 'i' with 'r' in the sentence.

Answer: a man rs posrng rn a desert, leanrng on a srgn wrth an rmage of a camel on rt


Question: Sentence: 'a bike sitting parked next to a cart in front of some boxes'. Replace the letter 't' with 'x' in the sentence.

Answer: a bike sixxing parked nexx xo a carx in fronx of some boxes


Question: Sentence: 'a silver train traveling past a tall brick building'. Replace the letter 't' with 'x' in the sentence.

Answer:
a silver xrain xraveling pasx a xall brick building