With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Umbrella is a book.
text_B: Dubianaclia butleri is a moth of the family Arctiidae .. Arctiidae. Arctiidae. Dubianaclia. Dubianaclia. moth. moth. It was described by Mabille in 1884 .. Mabille. Jules Paul Mabille. It is found in Madagascar .. Madagascar. Madagascar
not_related.