In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a mobile phone and a set of keys on a key chain'. Replace the letter 's' with 'j' in the sentence.

Answer: a mobile phone and a jet of keyj on a key chain


Question: Sentence: 'a busy intersection with cars moving at night'. Replace the letter 's' with 'f' in the sentence.

Answer: a bufy interfection with carf moving at night


Question: Sentence: 'an older man holding a cellphone to take another persons picture'. Replace the letter 't' with 'p' in the sentence.

Answer:
an older man holding a cellphone po pake anopher persons picpure