With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: The Royal Navy realised that airships similar to Ferdinand von Zeppelin's designs could be of great use and in 1909 ordered construction of a rigid airship.
text_B: The Royal Navy realised that airships similar to Ferdinand von Zeppelin's designs could be of great use and in 1900 ordered construction of a rigid airship.
contradiction.