A (bell ringer) can be lonely.Logical formLearned from16 sentences. An act can be lonely.Logical formLearned from16 sentences. A teen-ager can be lonely.Logical formLearned from16 sentences. An office can be lonely.Logical formLearned from16 sentences. A teacher can be lonely.Logical formLearned from16 sentences. Paths can be lonely.Logical formLearned from16 sentences. A hillside can be lonely.Logical formLearned from15 sentences. A void can be lonely.Logical formLearned from15 sentences. A childhood can be lonely.Logical formLearned from15 sentences. A mother can be lonely.Logical formLearned from15 sentences. A hamlet can be lonely.Logical formLearned from15 sentences. A cat can be lonely.Logical formLearned from15 sentences. A bed can be lonely.Logical formLearned from15 sentences. An animal can be lonely.Logical formLearned from15 sentences. A nation can be lonely.Logical formLearned from15 sentences.