Some era can be with some saves.Logical formLearned from15 sentences. A transition can be to an era.Logical formLearned from15 sentences. A play may pertain-to an era.Logical formLearned from15 sentences. An era may pertain-to a father.Logical formLearned from15 sentences. Engines may pertain-to an era.Logical formLearned from15 sentences. Some songs can be from an era.Logical formLearned from15 sentences. An era may undergo a building.Logical formLearned from15 sentences. Teams can be in an era.Logical formLearned from15 sentences. An album may pertain-to an era.Logical formLearned from15 sentences. Singers may pertain-to an era.Logical formLearned from15 sentences. A seventh century may pertain-to an era.Logical formLearned from15 sentences. An agreement may mark a new era.Logical formLearned from15 sentences. An era can be constituted-of-or-filled-with cynicism.Logical formLearned from15 sentences. A new era can be in music.Logical formLearned from15 sentences. An era can be constituted-of-or-filled-with (job insecurity).Logical formLearned from15 sentences.