With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Democratic Republic of the Congo is a former colony.
text_B: Conus viola , common name the violet cone , is a species of sea snail , a marine gastropod mollusk in the family Conidae , the cone snails and their allies .. sea snail. sea snail. gastropod. gastropod. mollusk. mollusk. family. family ( biology ). Conidae. Conidae. cone snails. Conus. Like all species within the genus Conus , these snails are predatory and venomous .. predatory. predatory. venomous. venomous. They are capable of `` stinging '' humans , therefore live ones should be handled carefully or not at all .
not_related.