<human>: How do you do this: How can you keep a brass ring from turning your finger green?

OPTIONS:
- Take the ring and place it on a piece of cardboard. Use white nail polish and paint the inside of the ring with it. Allow to dry for an hour before wearing.
- Take the ring and place it on a piece of cardboard. Use clear nail polish and paint the inside of the ring with it. Allow to dry for an hour before wearing.
<bot>: Take the ring and place it on a piece of cardboard. Use clear nail polish and paint the inside of the ring with it. Allow to dry for an hour before wearing.