A loop can be difficult.Logical formLearned from12 sentences. Coalitions can be difficult.Logical formLearned from12 sentences. Commutes can be difficult.Logical formLearned from12 sentences. A figure can be difficult.Logical formLearned from12 sentences. An obligation can be difficult.Logical formLearned from12 sentences. An opera can be difficult.Logical formLearned from12 sentences. A (transition year) can be difficult.Logical formLearned from12 sentences. A target can be difficult.Logical formLearned from12 sentences. A coalition can be difficult.Logical formLearned from12 sentences. A draw can be difficult.Logical formLearned from12 sentences. Human remains can be difficult.Logical formLearned from12 sentences. A downturn can be difficult.Logical formLearned from12 sentences. A scheduling can be difficult.Logical formLearned from12 sentences. Logistics may prove difficult.Logical formLearned from12 sentences. Files can be difficult.Logical formLearned from12 sentences.