An effort can be protracted.Logical formLearned from94 sentences. A negotiation can be protracted.Logical formLearned from91 sentences. An economic crisis can be protracted.Logical formLearned from91 sentences. Disputes can be protracted.Logical formLearned from91 sentences. A contest can be protracted.Logical formLearned from86 sentences. A (coalition building) can be protracted.Logical formLearned from86 sentences. An investigation can be protracted.Logical formLearned from85 sentences. A case can be protracted.Logical formLearned from84 sentences. A series can be protracted.Logical formLearned from84 sentences. A fighting can be protracted.Logical formLearned from83 sentences. Delays can be protracted.Logical formLearned from82 sentences. An affair can be protracted.Logical formLearned from81 sentences. A race can be protracted.Logical formLearned from78 sentences. A delay can be protracted.Logical formLearned from77 sentences. A warfare can be protracted.Logical formLearned from75 sentences.