With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The brown bear is the national or state animal of just one country.
text_B: Anatoma tabulata is a species of minute sea snail , a marine gastropod mollusk or micromollusk in the family Anatomidae .. species. species. sea snail. sea snail. marine. marine ( ocean ). gastropod. gastropod. mollusk. mollusk. micromollusk. micromollusk. family. family ( biology ). Anatomidae. Anatomidae
not_related.