sentences:  Though they bear the Odyssey House name, the treatment centers have operated as independent entities since the 1980s.All Odyssey House facilities revolve conceptually around the idea of the "Therapeutic Community", often referred to as the T.C., in which residents hold themselves and others accountable in order to highlight problem behaviors and other therapeutic issues, bringing power to their own community.Peers can hold each other accountable through a system referred to as "Encounters".