Table:
text: Celtic F.C. in European football
Matches in Europe
Matches in Europe
Competition Round Opposition Home_Leg Away_Leg
European Cup Second round Real Sociedad 2-1 0-2
UEFA Cup First round Aarhus Gymnastik Forening 1-0 4-1
UEFA Cup Second round Sporting CP 5-0 0-2
UEFA Cup Third round Nottingham Forest 1-2 0-0
UEFA Cup Winners` Cup First round Gent 3-0 0-1
UEFA Cup Winners` Cup Second round Rapid Vienna 0-1 1-3
UEFA Cup Winners` Cup First round Atlético Madrid 1-1 1-2
European Cup First round Shamrock Rovers 1-0 2-0
European Cup Second round Dynamo Kyiv 1-1 1-3
UEFA Cup First round Borussia Dortmund 2-1 0-2
European Cup First round Budapest Honvéd 4-0 0-1
European Cup Second round Werder Bremen 0-0 0-1

Question: What is the away game with an opponent who plays at Celtic FC in European football?