With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Dogs D'Amour formed in London in 1983.
text_B: Hackmania is a genus of spiders in the Dictynidae family .. Dictynidae. Dictynidae. It was first described in 1967 by Lehtinen .. it contains 2 species .
not_related.