What percentage of others have an SZDSZ of 4% and a Fidesz of 60%?
CREATE TABLE "opinion_polls" (
  "source" text,
  "date" text,
  "fidesz" text,
  "mszp" text,
  "szdsz" text,
  "jobbik" text,
  "others" text
);
SELECT "others" FROM "opinion_polls" WHERE "szdsz"='4%' AND "fidesz"='60%';