With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Raffaella Reggi and Sergio Casal were the defending champions but lost in the semifinals to Martina Navratilova and Emilio Sánchez.
text_B: Raffaella Reggi and Sergio Casal were the defending champions.
entailment.