A world-city may retain a status.Logical formLearned from24 sentences. A female may retain an ability.Logical formLearned from23 sentences. A country may retain independence.Logical formLearned from23 sentences. Material may be retained for historical research.Logical formLearned from23 sentences. A president may retain the right.Logical formLearned from23 sentences. Rights may be retained.Logical formLearned from23 sentences. A US-president may retain a lead.Logical formLearned from23 sentences. A male may retain a membership.Logical formLearned from23 sentences. A country may retain a capability.Logical formLearned from23 sentences. A female may retain the right.Logical formLearned from23 sentences. Rebels may retain an ability.Logical formLearned from23 sentences. A male may retain a right.Logical formLearned from23 sentences. A male may retain a rank.Logical formLearned from22 sentences. A male may retain a position.Logical formLearned from22 sentences. Files may be retained.Logical formLearned from22 sentences.