With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Ventricular fibrillation (V-fib or VF) is when the heart quivers instead of pumping due to disorganized electrical activity in the ventricles.
text_B: Ventricular fibrillation V - VF is when the heart quivers instead of pumping due to disorganized electrical activity in the ventricles.
entailment.