With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Season nine of "South Park", an American animated television series created by Trey Parker and Matt Stone, began airing on March 9, 2005.
text_B: Season nine of "South Park", an American animated television series created by Trey Parker and Alan Stock, began airing on March 9, 2005.
contradiction.