user: Question: Which Label has a Release of Liebesgrüsse Aus Ost-Berlin?
Columns: ['Release', 'Track', 'Format', 'Label', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Liebesgrüsse Aus Ost-Berlin', 'Mono 45UPM - Romance Adieu (Weltklang Remix)', '12"', 'Exil-System', 2006.0]
SQL:

assistant: SELECT "Label" FROM "Table" WHERE "Release" = 'Liebesgrüsse Aus Ost-Berlin';