With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: George H. W. Bush was an American politician born June 12, 1924.
text_B: Cantharidus caelatus is a species of small sea snail , a marine gastropod mollusc in the family Trochidae , the top shells .. species. species. sea snail. sea snail. marine. marine ( ocean ). gastropod. gastropod. mollusc. mollusc. family. family ( biology ). Trochidae. Trochidae
not_related.