With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lewis Friedman refused to write a documentary about Bob Marley.
text_B: Colus aurariae is a species of sea snail , a marine gastropod mollusk in the family Buccinidae , the true whelks .. Buccinidae. Buccinidae. Colus. Colus. species. species. sea snail. sea snail. gastropod. gastropod. mollusk. mollusk. family. family ( biology )
not_related.