Choose the word which is different from the rest: potassium, silicon, zirconium, gallium, germanium
All except potassium are metals used in semiconductor devices
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: Choose the word which is different from the rest: potassium, silicon, zirconium, gallium, germanium
### Input: 
### Response: All except potassium are metals used in semiconductor devices