Question: Which venue has attendance larger than 26526, and SF First Leg round?
SQL: SELECT "Venue" FROM "2-18866859-6" WHERE "Attendance" > 26526.0 AND "Round" = 'SF First Leg';

Question: Which result has Sunderland as opponent?
SQL: SELECT "Result" FROM "2-18866859-6" WHERE "Opponent" = 'Sunderland';