CREATE TABLE "doubles_33_17_16" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponents_in_final" text,
  "score_in_final" text
);

Question: Who was the opponents in the final that was played on April 16, 2006 and the outcome was runner-up?
SQL: SELECT "opponents_in_final" FROM "doubles_33_17_16" WHERE "outcome"='runner-up' AND "date"='april 16, 2006';

Question: Who were the opponents in the final when the game was played on hard surface and the score of the final was 6–1, 1–6, 7–6(4)?
SQL: SELECT "opponents_in_final" FROM "doubles_33_17_16" WHERE "surface"='hard' AND "score_in_final"='6–1, 1–6, 7–6(4)';