With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sister Act stars Whoopi Goldberg as a lounge singer.
text_B: Damarchilus is a genus of spiders in the Nemesiidae family .. Nemesiidae. Nemesiidae. It was first described in 2015 by Siliwal , Molur & Raven .. , it contains 2 species .
not_related.