Some military action can be necessary.Logical formLearned from13 sentences. A landing can be necessary.Logical formLearned from13 sentences. Purchases can be necessary.Logical formLearned from13 sentences. Struggle can be necessary.Logical formLearned from13 sentences. Ratification can be necessary.Logical formLearned from13 sentences. A limit can be necessary.Logical formLearned from13 sentences. School can be necessary.Logical formLearned from12 sentences. Products can be necessary.Logical formLearned from12 sentences. A necessary condition can be for stability.Logical formLearned from12 sentences. (Storyline missions) can be necessary.Logical formLearned from12 sentences. Cooling can be necessary.Logical formLearned from12 sentences. Care can be necessary.Logical formLearned from12 sentences. Games can be necessary.Logical formLearned from12 sentences. An inclusion can be necessary.Logical formLearned from12 sentences. Adjudication can be necessary.Logical formLearned from12 sentences.