With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Romelu Lukaku is European.
text_B: Siikalatva sub-region is a subdivision of Northern Ostrobothnia and one of the Sub-regions of Finland since 2009 .. Northern Ostrobothnia. Northern Ostrobothnia. Sub-regions of Finland. Sub-regions of Finland. Category  : Sub-regions of Finland. Sub-regions of Finland. Sub-regions of Finland. Category  : Geography of Northern Ostrobothnia. Northern Ostrobothnia. Northern Ostrobothnia
not_related.