instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a white plate topped with two sandwich halves and a pile of potatoes chips'. Replace the letter 'o' with 'x' in the sentence.
answer:
a white plate txpped with twx sandwich halves and a pile xf pxtatxes chips


question:
Sentence: 'a box of a dozen doughnuts all varieties'. Replace the letter 'l' with 'i' in the sentence.
answer:
a box of a dozen doughnuts aii varieties


question:
Sentence: 'a passenger train car with graffiti on the side'. Replace the letter 'p' with 'w' in the sentence.
answer:

a wassenger train car with graffiti on the side