How many platinum points were awarded when 70 silver points were awarded?
CREATE TABLE "ranking_points" (
  "finishing_position" text,
  "points_awarded_platinum" real,
  "points_awarded_gold" real,
  "points_awarded_silver" real,
  "points_awarded_satellite" real
);
SELECT "points_awarded_platinum" FROM "ranking_points" WHERE "points_awarded_silver"=70;