With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: The most important question is n't whether Discovery is technically ready to fly with new safety features and emergency procedures , but whether the agency itself has learned from the crucial errors most common to Challenger and Columbia , errors that grew out of a management culture that discouraged criticism and sacrificed safety for image - puffing and budget - cutting .
text_B: The learning did not happen
not-entailed.