instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a back pack and lap top sit on the kitchen counter'. Replace the letter 't' with 'k' in the sentence.
answer:
a back pack and lap kop sik on khe kikchen counker


question:
Sentence: 'a yellow street sign sitting on the side of a road'. Replace the letter 'a' with 'd' in the sentence.
answer:
d yellow street sign sitting on the side of d rodd


question:
Sentence: 'a display case filled with lots of different clocks'. Replace the letter 't' with 'q' in the sentence.
answer:

a display case filled wiqh loqs of differenq clocks