A single child can be lonely.Logical formLearned from18 sentences. A rider can be lonely.Logical formLearned from18 sentences. An only child can be lonely.Logical formLearned from18 sentences. Miles can be lonely.Logical formLearned from18 sentences. Afternoons can be lonely.Logical formLearned from18 sentences. An ache can be lonely.Logical formLearned from18 sentences. A war can be lonely.Logical formLearned from18 sentences. A boy can be lonely.Logical formLearned from18 sentences. A world can be lonely.Logical formLearned from18 sentences. Young persons can be lonely.Logical formLearned from17 sentences. A building can be lonely.Logical formLearned from17 sentences. A traveler can be lonely.Logical formLearned from17 sentences. A picture can be lonely.Logical formLearned from17 sentences. A (guide book) can be lonely.Logical formLearned from17 sentences. Songs can be lonely.Logical formLearned from17 sentences.