instruction:
In this task, you need to replace a letter in the sentence with another given letter.
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: 'young boy leaping into air with tennis racket with dog below him'. Replace the letter 't' with 'r' in the sentence.
answer:
young boy leaping inro air wirh rennis racker wirh dog below him


question:
Sentence: 'an urban setting with many oriental signs and decorations'. Replace the letter 'n' with 'b' in the sentence.
answer:

ab urbab settibg with maby oriebtal sigbs abd decoratiobs