A (world body) can be authoritative.Logical formLearned from2 sentences. An (evaluation report) can be authoritative.Logical formLearned from2 sentences. A (science magazine) can be authoritative.Logical formLearned from2 sentences. (Testing organizations) can be authoritative.Logical formLearned from2 sentences. Interviews can be authoritative.Logical formLearned from2 sentences. A law can be authoritative.Logical formLearned from2 sentences. An (information channel) can be authoritative.Logical formLearned from2 sentences. An institutes can be authoritative.Logical formLearned from2 sentences. (Weather forecasts) can be authoritative.Logical formLearned from2 sentences. Persons may wait for an authoritative answer.Logical formLearned from2 sentences. A (trade journal) can be authoritative.Logical formLearned from2 sentences. A firm can be authoritative.Logical formLearned from2 sentences. A king can be authoritative.Logical formLearned from2 sentences. Tests can be authoritative.Logical formLearned from2 sentences. Squares can be authoritative.Logical formLearned from2 sentences.