With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: King Kong is a film.
text_B: Kaiserstuhl is a municipality in the district of Zurzach in the canton of Aargau in Switzerland .. Zurzach. Zurzach ( district ). municipality. municipalities of Switzerland. canton. Cantons of Switzerland. Aargau. Aargau. Switzerland. Switzerland. The small town is listed as a heritage site of national significance .. heritage site of national significance. Swiss inventory of cultural property of national and regional significance
not_related.