With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cindy McCain is the wife of a presidential nominee.
text_B: Aechmea amicorum is a species in the genus Aechmea .. Aechmea. Aechmea. species. species ( biology ). genus. genus ( biology ). This species is endemic to Brazil .. species. species ( biology ). endemic. Endemism. Brazil. Brazil
not_related.