With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Demi Lovato's first book was "This is Me".
text_B: Oreolalax rugosus -LRB- Chaochiao lazy toad or warty toothed toad -RRB- is a species of amphibian in the Megophryidae family .. amphibian. amphibian. Megophryidae. Megophryidae. It is endemic to China where it can be found in the Hengduan Mountains in southern Sichuan and northern Yunnan provinces .. endemic. Endemism. China. China. Hengduan Mountains. Hengduan Mountains. Sichuan. Sichuan. Yunnan. Yunnan. Its natural habitats are subtropical moist montane forests and rivers .. It is threatened by habitat loss .. habitat. habitat. habitat loss. habitat loss. Male Oreolalax rugosus grow to about 47 mm in snout-vent length and females to about 50 mm .. Tadpoles are 67 mm in length .
not_related.