In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'street signs hanging next to a traffic light on a city street'. Replace the letter 'g' with 'm' in the sentence.

Answer: street simns hanminm next to a traffic limht on a city street


Question: Sentence: 'a red train moves over snowy rail road tracks'. Replace the letter 'v' with 'w' in the sentence.

Answer: a red train mowes ower snowy rail road tracks


Question: Sentence: 'a little girl that is looking at a polar bear'. Replace the letter 'o' with 'z' in the sentence.

Answer:
a little girl that is lzzking at a pzlar bear