Rare-earth elements may undergo a separation.Logical formLearned from4 sentences. A separation can be rigid.Logical formLearned from4 sentences. A (separation angle) can be between some views.Logical formLearned from4 sentences. Spin may undergo a separation.Logical formLearned from4 sentences. Some seconds can be for (spacecraft separation).Logical formLearned from4 sentences. Separation can be from an upper stage.Logical formLearned from4 sentences. Separation can be from a second stage.Logical formLearned from4 sentences. A responsibility may undergo a separation.Logical formLearned from4 sentences. A separation can be ordered.Logical formLearned from4 sentences. Separation can be between advertising.Logical formLearned from4 sentences. A path may pertain-to a (separation wall).Logical formLearned from4 sentences. Results can be in a loss of separation.Logical formLearned from4 sentences. A separation can be from persons.Logical formLearned from4 sentences. A date can be constituted-of-or-filled-with separation.Logical formLearned from4 sentences. A separation can be less.Logical formLearned from4 sentences.