"I see. Then if a man is ‘John Davis,’ he’s a son, but if he has some other last name he’s your co-husband. But a girl would be ‘Jenny Davis’ either way, wouldn’t she? How do I tell? By her age? No, that wouldn’t help. I’m confused! And I thought clan marriages were complex. Or polyandries—though mine wasn’t; at least my husbands had the same last name."