Classify each of the following as being opaque or transparent: Window, wall, lens, glass, wood, cement
Window: Transparent
Wall: Opaque
Lens: Transparent
Glass: Transparent
Wood: Opaque
Cement: Opaque
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Classify each of the following as being opaque or transparent: Window, wall, lens, glass, wood, cement
### Input: 
### Response: Window: Transparent
Wall: Opaque
Lens: Transparent
Glass: Transparent
Wood: Opaque
Cement: Opaque