With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Mithridates IV was the youngest son born to Vonones II from a Greek concubine and was one of the brothers of Osroes I of Parthia (109–129).
text_B: Mithridates IV was the youngest girl born to Vonones II from a Greek concubine and was one of the brothers of Osroes I of Parthia (109–129).
contradiction.