instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'this is a cute dog sticking his head out of the window of a red car'. Replace the letter 'e' with 'z' in the sentence.
answer:
this is a cutz dog sticking his hzad out of thz window of a rzd car


question:
Sentence: 'a group of people walking along a dirty snow covered road'. Replace the letter 'n' with 'i' in the sentence.
answer:
a group of people walkiig aloig a dirty siow covered road


question:
Sentence: 'a room containing a tv, closet, and exit to the hallway'. Replace the letter 'x' with 'j' in the sentence.
answer:

a room containing a tv, closet, and ejit to the hallway