CREATE TABLE "basins" (
  "basin" text,
  "continent" text,
  "drains_to" text,
  "basin_area_km_2" real,
  "basin_area_mi_2" text
);

Question: What is the Basin Area mi 2 when the Basin Area km 2 is larger than 2,261,763 and the Basin is Pearl River?
SQL: SELECT "basin_area_mi_2" FROM "basins" WHERE "basin_area_km_2">'2,261,763' AND "basin"='pearl river';

Question: Which Basin's Continent is South America, has a Basin Area km 2 larger than 6,144,727, and a Basin Area mi 2 of 238,539?
SQL: SELECT "basin" FROM "basins" WHERE "continent"='south america' AND "basin_area_km_2">'6,144,727' AND "basin_area_mi_2"='238,539';