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

Q: Sentence: 'traffic congestion with cars and an electric tram'. Replace the letter 'a' with 'k' in the sentence.

A: trkffic congestion with ckrs knd kn electric trkm
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Q: Sentence: 'a baseball player swinging a bat at a ball'. Replace the letter 's' with 'n' in the sentence.

A: a baneball player nwinging a bat at a ball
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Q: Sentence: 'a cow in a pen lying on the ground'. Replace the letter 'e' with 'j' in the sentence.

A:
a cow in a pjn lying on thj ground
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