Identify which instrument is string or percussion: Erxian, Alfaia
Erxian is string, Alfaia is percussion.
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: Identify which instrument is string or percussion: Erxian, Alfaia
### Input: 
### Response: Erxian is string, Alfaia is percussion.</s>