With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Carradine was not a musician.
text_B: Comitas terrisae is a species of sea snail , a marine gastropod mollusc in the family Turridae , the turrids .. Turridae. Turridae. Comitas. Comitas. species. species. sea snail. sea snail. marine. marine ( ocean ). gastropod. gastropod. mollusc. mollusc. family. family ( biology )
not_related.