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

Question: How many districts have Mac Sweeney as incumbent?
SQL: SELECT COUNT("candidates") FROM "united_states_house_of_representatives_e" WHERE "incumbent"='Mac Sweeney';

Question: Who are all the candidates vying for Henry B. Gonzalez' seat?
SQL: SELECT "candidates" FROM "united_states_house_of_representatives_e" WHERE "incumbent"='Henry B. Gonzalez';

Question: Name all the candidates vying for Albert Bustamante's seat.
SQL: SELECT "candidates" FROM "united_states_house_of_representatives_e" WHERE "incumbent"='Albert Bustamante';