Unconnected rooms ================= +-- Ground level --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | | | * * * % S C * * * * * * S * S * * * * * * * * * * * * * * * * M * * * * * * * * * * * * * * * * * * * * * * * * * * * * *--* | | / | | | / | | | * * | | | +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+