German Academy of Sciences at Berlin
The German Academy of Sciences at Berlin , , in 1972 renamed the Academy of Sciences of the GDR ( "Akademie der Wissenschaften der DDR ( AdW ) " ) , was the most eminent research institution of East Germany ( German Democratic Republic , GDR ) . 
<triplet> German Academy of Sciences at Berlin <subj> research institution <obj> instance of <subj> East Germany <obj> country