instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a woman is standing on a street curb'. Replace the letter 'a' with 't' in the sentence.
answer:
t womtn is sttnding on t street curb


question:
Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.
answer:
a family openl giftl in a room with their dog, while litting on couchel


question:
Sentence: 'a woman in glasses is laying down in a bed'. Replace the letter 'i' with 'm' in the sentence.
answer:

a woman mn glasses ms laymng down mn a bed