Calls to police may go unanswered.Logical formLearned from17 sentences. Appeals may go unanswered.Logical formLearned from17 sentences. A spike can be unanswered.Logical formLearned from16 sentences. E-mails may go unanswered.Logical formLearned from16 sentences. E-mails may go unanswered.Logical formLearned from16 sentences. Proposals to a side may remain unanswered.Logical formLearned from16 sentences. Calls to a football-association may go unanswered.Logical formLearned from16 sentences. Calls to a phone may go unanswered.Logical formLearned from16 sentences. Scores can be unanswered.Logical formLearned from15 sentences. Emails may go unanswered.Logical formLearned from15 sentences. A schedule may concern unanswered questions.Logical formLearned from15 sentences. An introduction may regard unanswered questions.Logical formLearned from15 sentences. A letter can be unanswered.Logical formLearned from15 sentences. Unanswered questions can be on subjects.Logical formLearned from15 sentences. Phones may go unanswered.Logical formLearned from15 sentences.