CREATE TABLE "grand_canyon_zoning_and_use_limits" (
  "area" text,
  "name" text,
  "zone" text,
  "group_s" real,
  "parties" real,
  "max_people" real,
  "camp_type" text
);

Question: What zone has camp type D/S in area Bl9?
SQL: SELECT "zone" FROM "grand_canyon_zoning_and_use_limits" WHERE "camp_type"='d/s' AND "area"='bl9';

Question: Which name has group 0 in Bl4 area?
SQL: SELECT "name" FROM "grand_canyon_zoning_and_use_limits" WHERE "group_s"=0 AND "area"='bl4';

Question: Which zone has max capacity of 23 in a group under 2 at Robbers Roost?
SQL: SELECT "zone" FROM "grand_canyon_zoning_and_use_limits" WHERE "max_people">23 AND "group_s"<2 AND "name"='robbers roost';