How many people on average attended when Eastwood Town was the away team, and the tie number was less than 8?
CREATE TABLE "replays" (
  "tie_no" real,
  "home_team" text,
  "score" text,
  "away_team" text,
  "attendance" real
);
SELECT AVG("attendance") FROM "replays" WHERE "tie_no"<8 AND "away_team"='eastwood town';