Negotiations can be on cooperation.Logical formLearned from31 sentences. A statement may call for cooperation.Logical formLearned from31 sentences. Cooperation can be in efforts.Logical formLearned from31 sentences. Cooperation can be on agriculture.Logical formLearned from30 sentences. A visit may boost cooperation.Logical formLearned from30 sentences. Cooperation can be between parliaments of some countries.Logical formLearned from30 sentences. Cooperation can be between a chinese mainland.Logical formLearned from30 sentences. Cooperation can be on affairs.Logical formLearned from30 sentences. A bridge can be for cooperation.Logical formLearned from30 sentences. Fields can be for cooperation.Logical formLearned from30 sentences. A hand can be constituted-of-or-filled-with cooperation.Logical formLearned from30 sentences. A country may have a history of cooperation.Logical formLearned from30 sentences. A country may attach importance to cooperation.Logical formLearned from30 sentences. Cooperation can be between producers.Logical formLearned from30 sentences. Cooperation can be in a (defense field).Logical formLearned from30 sentences.