With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Turnover events can have extremely minor causes like the migration of a taxon to a new area or extremely conspicuous ones like an ecosystem destroying catastrophe.
text_B: Turnover events can have extremely minor causes like the migration of a taxon to a old area or extremely conspicuous ones like an ecosystem destroying catastrophe.
neutral.