CREATE TABLE "county_board_of_supervisors" (
  "position" text,
  "name" text,
  "party" text,
  "first_elected" real,
  "district" text
);

Question: Tell me the name for first elected more than 1988 and district of mason
SQL: SELECT "name" FROM "county_board_of_supervisors" WHERE "first_elected">1988 AND "district"='mason';

Question: Name the party with first elected more than 1999 and position of supervisor for john foust
SQL: SELECT "party" FROM "county_board_of_supervisors" WHERE "first_elected">1999 AND "position"='supervisor' AND "name"='john foust';

Question: Name the total number of first elected for dranesville
SQL: SELECT COUNT("first_elected") FROM "county_board_of_supervisors" WHERE "district"='dranesville';