instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'there is a stepladder situated over a toilet'. Replace the letter 'r' with 'x' in the sentence.
answer:
thexe is a stepladdex situated ovex a toilet


question:
Sentence: 'a bathroom that has  a sink and a toilet'. Replace the letter 's' with 'a' in the sentence.
answer:
a bathroom that haa  a aink and a toilet


question:
Sentence: 'lots of luggage is jammed into the back compartment of a van'. Replace the letter 'o' with 'h' in the sentence.
answer:

lhts hf luggage is jammed inth the back chmpartment hf a van