A (21st century) can be dated.Logical formLearned from93 sentences. Spaceships may pertain-to a (21st century).Logical formLearned from93 sentences. A half century can be unbeaten.Logical formLearned from93 sentences. A century may undergo inventions.Logical formLearned from92 sentences. Figures may pertain-to a century.Logical formLearned from92 sentences. Artists may pertain-to a century.Logical formLearned from92 sentences. Crimes may pertain-to a century.Logical formLearned from92 sentences. An outset may pertain-to a century.Logical formLearned from92 sentences. Some centuries can be in some tests.Logical formLearned from92 sentences. Centuries may pass.Logical formLearned from90 sentences. A beginning may pertain-to a (century ad).Logical formLearned from89 sentences. A manuscript may be assigned to a century.Logical formLearned from89 sentences. A century may undergo invasions.Logical formLearned from89 sentences. A world-city can be in a century.Logical formLearned from89 sentences. A century may undergo struggles.Logical formLearned from89 sentences.