In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a suitcase is sitting on a sidewalk near trees'. Replace the letter 's' with 'd' in the sentence.

Answer: a duitcade id ditting on a didewalk near treed


Question: Sentence: 'a bathroom with a white toilet next to a large window'. Replace the letter 'w' with 'x' in the sentence.

Answer: a bathroom xith a xhite toilet next to a large xindox


Question: Sentence: 'a large bus is on the street with an advertisement on it'. Replace the letter 'a' with 'f' in the sentence.

Answer:
f lfrge bus is on the street with fn fdvertisement on it