0 chair Sitting Furniture
1 chair_back Chair Back
2 chair_seat Chair Seat
3 chair_base Chair Base
11 back_surface Back Surface
9 seat_surface Seat Surface
4 regular_leg_base Regular Leg Base
12 back_hard_surface Back Hard Surface
10 seat_hard_surface Seat Hard Surface
5 leg Leg
6 leg Leg
7 leg Leg
8 leg Leg