With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Hogwarts is a fictional setting created by a writer of a young adult fantasy series.
text_B: Drupa speciosa is a species of sea snail , a marine gastropod mollusk in the family Muricidae , the murex snails or rock snails .. Muricidae. Muricidae. Drupa. Drupa ( gastropod ). species. species. sea snail. sea snail. gastropod. gastropod. mollusk. mollusk. family. family ( biology )
not_related.