instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man stands in front of a plane on a take off strip'. Replace the letter 'n' with 'o' in the sentence.
answer:
a mao staods io froot of a plaoe oo a take off strip

question:
Sentence: 'a polar bear relaxing in a man-made pool'. Replace the letter 'r' with 'x' in the sentence.
answer:
a polax beax xelaxing in a man-made pool

question:
Sentence: 'white green yellow and blue colored public transit bus'. Replace the letter 'i' with 'e' in the sentence.
answer:
whete green yellow and blue colored publec transet bus