instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a city street with cars and busses near buildings'. Replace the letter 'e' with 'd' in the sentence.
answer:
a city strddt with cars and bussds ndar buildings


question:
Sentence: 'a dog laying in front of a horses stall with the horse peeking over the half door'. Replace the letter 'a' with 'b' in the sentence.
answer:
b dog lbying in front of b horses stbll with the horse peeking over the hblf door


question:
Sentence: 'a couple of street signs with ice all over them'. Replace the letter 'e' with 'b' in the sentence.
answer:

a couplb of strbbt signs with icb all ovbr thbm