With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Martin Damm and Radek Štěpánek were the defending champions but they competed with different partners that year, Damm with Cyril Suk and Štěpánek with Jiří Novák.
text_B: Martin Damm and Radek Štěpánek were the defending champions.
entailment.