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