With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tubelight had a producer who was an Indian director.
text_B: is a UNESCO World Heritage Site in northern Honshu , Japan .. UNESCO. UNESCO. World Heritage Site. World Heritage Site. Honshu. Honshu. This mountainous , unspoiled expanse of virgin forest straddles both Akita and Aomori Prefectures .. virgin forest. virgin forest. Akita. Akita prefecture. Aomori. Aomori prefecture. Of the entire 1,300 km ² , a tract covering 169.7 km ² was included in the list of World Heritage Sites in 1993 .. Siebold 's beech trees make up a large portion of the forest .
not_related.