on predicate member of political party sorted by label

Subject	Predicate
?:Andrzej Lepper	?:member of political party
?:Genowefa Wiśniowska	?:member of political party
?:Leopold Rutowicz	?:member of political party
?:Ryszard Czarnecki	?:member of political party
?:Stanisław Łyżwiński	?:member of political party
?:Wiesław Kuc	?:member of political party