With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Emilio Estevez is a film actor.
text_B: A mayoral election was held in Surabaya on 9 December 2015 , as part of the 2015 simultaneous local elections across Indonesia .. Surabaya. Surabaya. 2015 simultaneous local elections. Indonesian local elections, 2015. Indonesia. Indonesia. The incumbent mayor , Tri Rismaharini , popularly known as Risma , was running for re-election against the former Provincial Secretary of East Java , Rasiyo .. Tri Rismaharini. Tri Rismaharini. Rasiyo. :id :Rasiyo. Risma won by a landslide margin of over 70 % .
not_related.