Identify which instrument is string or percussion: Marimba, Hummel
Hummel is string, Marimba 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: Marimba, Hummel
### Input: 
### Response: Hummel is string, Marimba is percussion.