With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Founded in the 12th century , the Principality of Muscovy , was able to emerge from over 200 years of Mongol domination ( 13th - 15th centuries ) and to gradually conquer and absorb surrounding principalities .
text_B: Mongol is a geographical/political entity
entailed.