A proposal can be for a summit.Logical formLearned from74 sentences. A (g20 summit) may pertain-to week.Logical formLearned from74 sentences. A summit can be between leader.Logical formLearned from73 sentences. A summit may pertain-to a bloc.Logical formLearned from73 sentences. (Summit meetings) can be regular.Logical formLearned from73 sentences. A summit may collapse.Logical formLearned from73 sentences. Objectives may pertain-to a summit.Logical formLearned from73 sentences. A course may pertain-to a summit.Logical formLearned from73 sentences. A (leadership summit) can be annual.Logical formLearned from73 sentences. Security can be for a summit.Logical formLearned from73 sentences. An issue can be at a summit.Logical formLearned from73 sentences. Some heads of state may attend a summit.Logical formLearned from72 sentences. Some summit can be on sustainable development.Logical formLearned from72 sentences. Summit may open.Logical formLearned from72 sentences. A US-president may attend a summit.Logical formLearned from72 sentences.