With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Warm Leatherette is by a lyricist.
text_B: Bertholdia pseudofumida is a moth of the family Erebidae .. moth. moth. Erebidae. Erebidae. It was described by Travassos in 1950 .. It is found in Brazil .. Brazil. Brazil
not_related.