With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: A 20-year rule by Ferdinand MARCOS ended in 1986 , when a `` people power `` movement in Manila ( `` EDSA 1 `` ) forced him into exile and installed Corazon AQUINO as president .
text_B: 1986 is a calendar year
entailed.