With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: The episode was written by showrunner Shonda Rhimes and executive producer Mark Wilding and directed by executive producer Tom Verica.
text_B: The episode was written by showrunner Shonda Rhimes and executive producer Christopher Chulack and directed by executive producer Tom Verica.
contradiction.