With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Jana Novotná and Mary Pierce were the defending champions, but Novotná retired from professional tennis in 1999 and Pierce did not compete at the tournament.
text_B: Jana Novotná and Mary Pierce were the defending champions, but Novotná retired from professional tennis in 1990 and Pierce did not compete at the tournament.
contradiction.