instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a cat with a pink bow sits underneath something silver'. Replace the letter 'h' with 'n' in the sentence.
answer:
a cat witn a pink bow sits underneatn sometning silver


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 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