With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shirley MacLaine has won an Academy Award.
text_B: Tubinidae is an extinct taxonomic family of fossil sea snails , marine , gastropod mollusks in the clade Neritimorpha , the nerites and their allies .. Neritimorpha. Neritimorpha. extinct. extinct. taxonomic. taxonomic. family. Family ( biology ). fossil. fossil. sea snails. sea snails. marine. marine ( ocean ). gastropod. gastropod. clade. clade
not_related.