With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sansa Stark was created by a poet.
text_B: Casearia macrocarpa is a species of plant in the Salicaceae family .. Salicaceae. Salicaceae. Casearia. Casearia. plant. plant. It is a tree endemic to Peninsular Malaysia .. endemic. endemism. Peninsular Malaysia. Peninsular Malaysia. It is threatened by habitat loss .. habitat loss. habitat loss
not_related.