With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Petersen held discussions with both Kumaratunga and the reclusive LTTE leader Velupillai Prabhakaran in the rebel stronghold of Kilinochchi without success , and chief Tamil rebel negotiator Anton Balasingham and Norwegian envoy Erik Solheim held closed - door talks at the international airport late Saturday in an effort to keep the salvage effort on track , diplomatic sources said .
text_B: The holding did not happen
not-entailed.