instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'two cats sitting on an office chair next to a desk'. Replace the letter 's' with 'j' in the sentence.
answer:
two catj jitting on an office chair next to a dejk


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 brown horse on brick road next to people and a fountain'. Replace the letter 'e' with 'k' in the sentence.
answer:

a brown horsk on brick road nkxt to pkoplk and a fountain