With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: The High Renaissance period is traditionally taken to begin in the 1490s , with Leonardo s fresco of the Last Supper in Milan and the death of Lorenzo de ' Medici in Florence , and to have ended in 1527 with the sacking of Rome by the troops of Charles V .
text_B: The ending did not happen
not-entailed.