instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a piece of chocolate cake is on a plate with a fork'. Replace the letter 'e' with 's' in the sentence.
answer:
a piscs of chocolats caks is on a plats with a fork

question:
Sentence: 'a couple of giraffe standing next to each other in a forest'. Replace the letter 'a' with 'w' in the sentence.
answer:
w couple of girwffe stwnding next to ewch other in w forest

question:
Sentence: 'desk with several items and low level of lighting'. Replace the letter 'm' with 'y' in the sentence.
answer:
desk with several iteys and low level of lighting