With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: The dynamics of change in the state of health of children affected by the Chernobyl accident in all three countries - Belarus , Russia , and Ukraine - in the post-accident period is characterized by persistent negative tendencies : the morbidity rate is going up , the number of really healthy children is dropping , and disability is increasing .
text_B: The increasing happened
entailed.