instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a young boy in a shopping cart looking at tooth brushes'. Replace the letter 'o' with 'r' in the sentence.
answer:
a yrung bry in a shrpping cart lrrking at trrth brushes


question:
Sentence: 'a study features the color green and old-fashioned furniture'. Replace the letter 'e' with 'd' in the sentence.
answer:
a study fdaturds thd color grddn and old-fashiondd furniturd


question:
Sentence: 'desk with several items and low level of lighting'. Replace the letter 'm' with 'y' in the sentence.
answer:

desk with several iteys and low level of lighting