Academy of Sciences of the Soviet Union
The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991 , uniting the country's leading scientists , subordinated directly to the Council of Ministers of the Soviet Union ( until 1946 – to the Council of People's Commissars of the Soviet Union ) . 
<triplet> Academy of Sciences of the Soviet Union <subj> Soviet Union <obj> country <triplet> Council of Ministers of the Soviet Union <subj> Soviet Union <obj> country <triplet> Council of People's Commissars of the Soviet Union <subj> Soviet Union <obj> country