response: That's interesting to know! Brown hair color varies; is your wife's more light brown, or closer to black?
original_response: That's pretty cool! I've heard there's all sorts of shades of brown hair. Does she have light brown or darker brown hair?
history: my wife has brown hair, it's so pretty i really love it Oh, that's nice. Your wife has the second-most common hair color for humans. Huh, I didn't know that. Where is brown hair common? It's common in various parts of Europe, as well as the US and parts of the Middle East. Oh, interesting. My wife used to use henna to dye her hair red. I mean, it wasn't really read; it just looked brown with red tint. That's pretty cool. I know of henna as the temporary body art. Me too, but apparently a lot of people from her home country (Kazakhstan) use henna to dye hair.
knowledge: It varies from light brown to almost black hair.