With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: In a ceremony attended by several European political leaders and 5,000 VIP guests , Airbus unveiled plans for the A380 , a twin-deck aircraft that can carry up to 840 people in all-economy class ( 550 for a Boeing 747 ) , or 555 people in typical three mixed classes layout .
text_B: The unveiling happened
entailed.