A country may enter an era.Logical formLearned from21 sentences. A society may pertain-to an era.Logical formLearned from21 sentences. An era can be constituted-of-or-filled-with specialization.Logical formLearned from21 sentences. A new era can be constituted-of-or-filled-with gaming.Logical formLearned from21 sentences. A new era can be constituted-of-or-filled-with alliances.Logical formLearned from21 sentences. A new era can be constituted-of-or-filled-with warfare.Logical formLearned from21 sentences. Documents may pertain-to an era.Logical formLearned from21 sentences. An era may pertain-to a doctor.Logical formLearned from21 sentences. A racism may pertain-to an era.Logical formLearned from21 sentences. An era can be constituted-of-or-filled-with television.Logical formLearned from21 sentences. An era can be constituted-of-or-filled-with markets.Logical formLearned from21 sentences. An era can be constituted-of-or-filled-with opportunities.Logical formLearned from21 sentences. A turbulence may pertain-to an era.Logical formLearned from21 sentences. A skater may pertain-to an era.Logical formLearned from21 sentences. An era can be constituted-of-or-filled-with instability.Logical formLearned from21 sentences.