CREATE TABLE "alabama" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question: Name the incumbent for lost renomination republican hold
SQL: SELECT "incumbent" FROM "alabama" WHERE "result"='Lost renomination Republican hold';

Question: Name the result for first elected being 1992
SQL: SELECT "result" FROM "alabama" WHERE "first_elected"=1992;

Question: Name the incumbent for alabama 6
SQL: SELECT "incumbent" FROM "alabama" WHERE "district"='Alabama 6';