A peak may pertain-to an era.Logical formLearned from33 sentences. Leaders may pertain-to an era.Logical formLearned from33 sentences. Songs can be from an era.Logical formLearned from33 sentences. Eras may pertain-to a history.Logical formLearned from33 sentences. An era can be constituted-of-or-filled-with mergers.Logical formLearned from33 sentences. An era may undergo comings.Logical formLearned from33 sentences. An era can be constituted-of-or-filled-with wages.Logical formLearned from33 sentences. A us-state may seek start to new era.Logical formLearned from33 sentences. Knowledge may pertain-to an era.Logical formLearned from33 sentences. An era may pertain-to a dynasty.Logical formLearned from33 sentences. A fighter may pertain-to an era.Logical formLearned from33 sentences. A sound may pertain-to an era.Logical formLearned from33 sentences. An era can be modern-day.Logical formLearned from33 sentences. Some era can be in a season.Logical formLearned from33 sentences. A male can be 4-0 with an era.Logical formLearned from33 sentences.