A world-city may host a summit.Logical formLearned from68 sentences. A country may boycot a summit.Logical formLearned from68 sentences. A statement may be issued after a summit.Logical formLearned from68 sentences. Summit can be on sustainable development.Logical formLearned from67 sentences. A summit can be in a continent.Logical formLearned from67 sentences. A (g20 summit) may pertain-to month.Logical formLearned from67 sentences. An (emergency summit) may pertain-to a weekday.Logical formLearned from67 sentences. Leaders may gather for a summit.Logical formLearned from67 sentences. A summit can be expected.Logical formLearned from67 sentences. A message can be to a summit.Logical formLearned from66 sentences. A summit may pertain-to a writer.Logical formLearned from66 sentences. A summit can be fractious.Logical formLearned from66 sentences. A summit can be constituted-of-or-filled-with (government leaders).Logical formLearned from66 sentences. A session may pertain-to a summit.Logical formLearned from66 sentences. A (climate summit) can be in a world-city.Logical formLearned from66 sentences.