Classify these animals as either a reptile or an amphibian
crocodile, snake, alligator, frog, salamander
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 these animals as either a reptile or an amphibian
### Input: 
### Response: crocodile, snake, alligator, frog, salamander