Which company was based in London, United Kingdom?
CREATE TABLE "table_of_largest_rogue_trader_losses" (
  "name" text,
  "country" text,
  "date_s" real,
  "loss" text,
  "institution" text,
  "market_activity" text,
  "sentence" text
);
SELECT "institution" FROM "table_of_largest_rogue_trader_losses" WHERE "country"='London, United Kingdom';