Table for the 2 triples with object Panayotis Roumeliotis on predicate <http://schema.org/about> sorted by label

Subject	Predicate
?:%CE%A0%CE%B1%CE%BD%CE%B1%CE%B3%CE%B9%CF%8E%CF%84%CE%B7%CF%82_%CE%A1%CE%BF%CF%85%CE%BC%CE%B5%CE%BB%CE%B9%CF%8E%CF%84%CE%B7%CF%82	?:about
?:Panagiotis_Roumeliotis	?:about