With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: It is regarded as related to "Cyathea", but is considered more primitive, dating back at least to the Jurassic and Cretaceous periods.
text_B: It is considered more primitive, dating back at least to the Jurassic and Cretaceous periods.
entailment.