Tell me a joke involving a bird native to Antarctica.
Two penguins were sitting on an iceberg. One penguin says to the other penguin, "it looks like you're wearing a tuxedo." The other penguin says, "who says I'm not?"
Instruction: Tell me a joke involving a bird native to Antarctica.
Context: 
Response: Two penguins were sitting on an iceberg. One penguin says to the other penguin, "it looks like you're wearing a tuxedo." The other penguin says, "who says I'm not?"