With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: We had a pretty good idea when we signed the contract that ECS would not be able to complete that by the contract start date , so we negotiated a fall back plan under which ECS is obligated to `` assist [ Transwestern ] in developing a manual system to accomplish the same result and will hold harmless and keep [ Transwestern ] whole for all cost and expenses `` associated with the manual system .
text_B: The obligating happened
entailed.