Questions may be left unanswered.Logical formLearned from32 sentences. A person may have some unanswered questions.Logical formLearned from31 sentences. Scientific questions can be unanswered.Logical formLearned from30 sentences. A lot of questions can be unanswered.Logical formLearned from30 sentences. Actions may go unanswered.Logical formLearned from30 sentences. A request may go unanswered.Logical formLearned from30 sentences. Attacks may go unanswered.Logical formLearned from30 sentences. A telephone may go unanswered.Logical formLearned from29 sentences. Letters may go unanswered.Logical formLearned from28 sentences. Requests can be unanswered.Logical formLearned from28 sentences. Persons may have some unanswered questions.Logical formLearned from28 sentences. An email can be unanswered.Logical formLearned from27 sentences. Calls to a headquarters may go unanswered.Logical formLearned from27 sentences. Calls to a company may go unanswered.Logical formLearned from27 sentences. A (phone call) may go unanswered.Logical formLearned from26 sentences.