What party has a term of office of 1951–1966, and a State of sa?
CREATE TABLE "see_also" (
  "member" text,
  "party" text,
  "electorate" text,
  "state" text,
  "term_of_office" text
);
SELECT "party" FROM "see_also" WHERE "term_of_office"='1951–1966' AND "state"='sa';