With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Series 2 first aired on 9 September 2013 and concluded on 21 October 2013 and again consisted of 13 episodes.
text_B: Series 2 concluded on 21 October 2013 and again consisted of 13 episodes.
entailment.