Basla 19 was a human colony in deep space.
The colonists on Basla 19 had an agreement with a colony ship community. Some members of the colony ship, when they turned 18, decided to travel to Basla 19 after they learnt the truth about where they were living. In exchange, the inhabitants of the colony ship allowed Basla 19 colonists to visit their ship from time to time. (PROSE: A Good Life)