CREATE TABLE "regular_season" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "game_site" text,
  "attendance" text
);

Question: What day had 37,500 attending?
SQL: SELECT "date" FROM "regular_season" WHERE "attendance"='37,500';

Question: What day did they play at candlestick park?
SQL: SELECT "date" FROM "regular_season" WHERE "game_site"='candlestick park';