Desk Lamp

1. Colour

1.1. Metallic

1.1.1. silver

1.1.2. gold

1.1.3. steel

1.2. Bright

1.2.1. White

1.2.2. Blue

1.3. Dark

1.3.1. Black

2. oppoment

2.1. student

3. Style

3.1. mordern

3.2. normal

4. Material

4.1. Plastic

4.2. Wood

4.2.1. Solf

4.2.1.1. pine

4.2.1.2. Balsa

4.2.2. Hard

4.2.2.1. oak

4.2.2.2. mahogany

4.3. Metal

4.3.1. Brass

4.3.2. Steal

4.3.3. Copper

5. Cost

5.1. Cheap

5.2. Expensive

5.3. Acceptable