What team was opponen in baltimore, at 2:00pm, on 4/06/08?
CREATE TABLE "21st_century_comeback" (
  "date" text,
  "time" text,
  "opponent" text,
  "site" text,
  "city" text
);
SELECT "opponent" FROM "21st_century_comeback" WHERE "city"='baltimore' AND "time"='2:00pm' AND "date"='4/06/08';