With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: U2 are one of the world's best-selling music artists.
text_B: Hemiliostraca bahamondei is a species of sea snail , a marine gastropod mollusk in the family Eulimidae .. Eulimidae. Eulimidae. Hemiliostraca. Hemiliostraca. species. species. sea snail. sea snail. marine. marine ( ocean ). gastropod. gastropod. mollusk. mollusk. family. family ( biology )
not_related.