With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: A shipment of weapons , ammunition and explosives , believed to have been purchased from Cambodia and worth several million dollars , left the port of Phuket in Thailand in early February 2001 aboard the freighter Comex - Joux 3 .
text_B: The purchasing did not happen
not-entailed.