Question: Did Sílvio Silas Da Silva Walenga and Panagiotis Roumeliotis have the same nationality?
Sentence (from "Panagiotis Roumeliotis"): A friend and advisor of Andreas Papandreou, he has served as Minister of National Economy, Minister of Commerce, Member of the European Parliament for PASOK and as Greece's representative at the International Monetary Fund.
Relevant evidence: No