CREATE TABLE "regular_season" (
  "date" text,
  "visitor" text,
  "score" text,
  "home" text,
  "decision" text,
  "attendance" real,
  "record" text
);

Question: What is the date of the game with more than 16,015 in attendance with a Colorado Visitor?
SQL: SELECT "date" FROM "regular_season" WHERE "attendance">'16,015' AND "visitor"='colorado';