A convention may recognize that something-is-the-case.Logical formLearned from36 sentences. Countries may ratify a convention.Logical formLearned from35 sentences. A conference may pertain-to a convention.Logical formLearned from35 sentences. An evening may pertain-to a convention.Logical formLearned from35 sentences. An international convention can be on an elimination of some forms of racial discrimination.Logical formLearned from35 sentences. Delegates can be to a constitutional convention.Logical formLearned from35 sentences. Conventions can be successful.Logical formLearned from35 sentences. A march can be to a (convention site).Logical formLearned from35 sentences. A convention can be weeklong.Logical formLearned from35 sentences. A (hacker convention) can be in a US-city.Logical formLearned from35 sentences. A convention may undergo events.Logical formLearned from35 sentences. A political-leader may attend some convention.Logical formLearned from35 sentences. An (anchor role) can be at conventions.Logical formLearned from35 sentences. Delegates can be to a national convention.Logical formLearned from35 sentences. A (convention center) can be in a world-city.Logical formLearned from35 sentences.