With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ativan is the brand name for thievery.
text_B: Calliclava aegina is a species of sea snail , a marine gastropod mollusk in the family Drilliidae .. species. species. sea snail. sea snail. gastropod. gastropod. mollusk. mollusk. family. family ( biology ). Drilliidae. Drilliidae
not_related.