Identify which of the following are episode titles from "The X-Files": The Pine Bluff Variant, My Teacher is an Alien, Memento Mori, The Day the Earth Stood Still, Millennium, Arcadia, The Matrix
The Pine Bluff Variant, Memento Mori, Millennium, Arcadia
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 of the following are episode titles from "The X-Files": The Pine Bluff Variant, My Teacher is an Alien, Memento Mori, The Day the Earth Stood Still, Millennium, Arcadia, The Matrix
### Input: 
### Response: The Pine Bluff Variant, Memento Mori, Millennium, Arcadia