With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Berlin is part of the European Plain region.
text_B: Innogy SE is an energy company based in Essen , Germany .. Essen. Essen. It is a subsidiary of the German energy company RWE .. RWE. RWE. The company was created on 1 April 2016 by splitting the renewable , network and retail businesses of RWE into a separate entity .. RWE. RWE. The new entity combined RWE subsidiaries RWE Innogy , RWE Deutschland , RWE Effizienz , RWE Vertrieb and RWE Energiedienstleistungen .. RWE. RWE. On 7 October 2016 , it was listed at the Frankfurt Stock Exchange .. Frankfurt Stock Exchange. Frankfurt Stock Exchange
not_related.