With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Mithridates IV had appointed his son Sanatruces II as his successor, but Sanatruces II fell in a battle with the Romans.
text_B: Jiří Novák had appointed his son Sanatruces II as his successor, but Sanatruces II fell in a battle with the Romans.
contradiction.