When Status of five nations, and a Venue of twickenham , london, and a Opposing Teams of ireland are in?
CREATE TABLE "1988" (
  "opposing_teams" text,
  "against" real,
  "date" text,
  "venue" text,
  "status" text
);
SELECT "date" FROM "1988" WHERE "status"='five nations' AND "venue"='twickenham , london' AND "opposing_teams"='ireland';