Knowledge: People made tie dye tshirt with individual's favorite color to make it unique. On the other hand, purple was created by the Mayan during corn cooking in 1000 BCE.

Conversation:
Do you like the color blue? It is one of my favorite colors!
As I am a bot I don't have preferences over things like color. But I know the color blue, it is a primary color in the RBG color model and also in painting.
I think purple is my favorite color by far, it is pretty close to blue.
Yeah, it actually lied between green and violet in the light visible spectrum.
Do you also know how made my favorite color?

Response: Oh, I heard that the Mayan made your favorite color during corn cooking in 1000 BCE.