Twins

I would like to introduce you to Hassane & Ouseinni. They are very energetic students in the 1st grade at the Zinder Primary School. They are also twins. In the Hausa culture, twins are almost always named Hassane and Ouseinni, with Hassane being the 1st born. If they're girls, they're called Hassana and Ousseina. So, as a general rule, if you meet a Hassane in Niger, it's very likely that he has a brother named Ousseini. And, of course, if you meet an Ousseini...