With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Beckham plays soccer.
text_B: Kylix halocydne is a species of sea snail , a marine gastropod mollusk in the family Drilliidae that lives in a tropical climate , usually in the Eastern Pacific area .. Drilliidae. Drilliidae. Kylix. Kylix ( gastropod ). species. species. sea snail. sea snail. gastropod. gastropod. mollusk. mollusk. family. family ( biology ). tropical. tropical. Eastern Pacific. Eastern Pacific
not_related.