Identify which animal species is alive or extinct: Tyrannosaurus Rex, Amazon River Dolphin
Tyrannosaurus Rex is extinct, Amazon River Dolphin is alive.
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 animal species is alive or extinct: Tyrannosaurus Rex, Amazon River Dolphin
### Input: 
### Response: Tyrannosaurus Rex is extinct, Amazon River Dolphin is alive.