Question: What zone has camp type D/S in area BL9?
SQL: SELECT "Zone" FROM "2-11939154-1" WHERE "Camp Type" = 'D/S' AND "Area" = 'BL9';

Question: Which name has group 0 in BL4 area?
SQL: SELECT "Name" FROM "2-11939154-1" WHERE "Group(s)" = 0.0 AND "Area" = 'BL4';

Question: Which zone has max capacity of 23 in a group under 2 at Robbers Roost?
SQL: SELECT "Zone" FROM "2-11939154-1" WHERE "Max People" > 23.0 AND "Group(s)" < 2.0 AND "Name" = 'Robbers Roost';