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

Q: Sentence: 'a gray and white cat sleeping on top of a laptop computer'. Replace the letter 'l' with 'g' in the sentence.

A: a gray and white cat sgeeping on top of a gaptop computer
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Q: Sentence: 'a crowd watches as giraffes graze the tree tops at the zoo'. Replace the letter 't' with 'q' in the sentence.

A: a crowd waqches as giraffes graze qhe qree qops aq qhe zoo
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Q: Sentence: 'a zebra standing next to a big tree'. Replace the letter 'i' with 'u' in the sentence.

A:
a zebra standung next to a bug tree
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