A list can be mysterious.Logical formLearned from56 sentences. A key can be mysterious.Logical formLearned from55 sentences. A machine can be mysterious.Logical formLearned from55 sentences. A caller can be mysterious.Logical formLearned from55 sentences. Bursts can be mysterious.Logical formLearned from55 sentences. A mansion can be mysterious.Logical formLearned from55 sentences. Boxes can be mysterious.Logical formLearned from54 sentences. A rash can be mysterious.Logical formLearned from54 sentences. A fever can be mysterious.Logical formLearned from54 sentences. A plot can be mysterious.Logical formLearned from53 sentences. Elements can be mysterious.Logical formLearned from52 sentences. A matter can be mysterious.Logical formLearned from52 sentences. Music can be mysterious.Logical formLearned from52 sentences. A change can be mysterious.Logical formLearned from52 sentences. A killing can be mysterious.Logical formLearned from52 sentences.