In this task, you need to replace a letter in the sentence with another given letter.

[Q]: Sentence: 'a mobile phone and a set of keys on a key chain'. Replace the letter 's' with 'j' in the sentence.
[A]: a mobile phone and a jet of keyj on a key chain


[Q]: Sentence: 'a person scooping from a large pot of soup on the stove into a soup bowl'. Replace the letter 'a' with 'x' in the sentence.
[A]: x person scooping from x lxrge pot of soup on the stove into x soup bowl


[Q]: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.
[A]:
a perkon ik waiting for a pizza to come out of an oven fired grill