instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man walking his dog near a sandy area'. Replace the letter 'i' with 'g' in the sentence.
answer:
a man walkgng hgs dog near a sandy area


question:
Sentence: 'two men and a dog are standing beside a building'. Replace the letter 'b' with 'y' in the sentence.
answer:
two men and a dog are standing yeside a yuilding


question:
Sentence: 'giraffes running through their natural habitat in the day time'. Replace the letter 'r' with 'p' in the sentence.
answer:

gipaffes punning thpough theip natupal habitat in the day time