user: Question: What is the score when the attendance shows TBC, and Sidley United was the opponent?
Columns: ['Date', 'Opponent', 'Venue', 'Score', 'Attendance', 'Scorers']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['15 July 2008', 'Eastbourne Town', 'Away', 'Drew 4-4', 'Unknown', 'Atkin (3), Sigere']
SQL:

assistant: SELECT "Score" FROM "Table" WHERE "Attendance" = 'TBC' AND "Opponent" = 'Sidley United';