on predicate member of political party sorted by label

Subject	Predicate
?:Alekos Alavanos	?:member of political party
?:Dimitrios Papadimoulis	?:member of political party
?:Leonidas Kyrkos	?:member of political party
?:Manolis Glezos	?:member of political party
?:Nikólaos Chountís	?:member of political party
?:Thanasis Pafilis	?:member of political party