An individual may remain_on in a world-city.Logical formLearned from3 sentences. A light may remain_on for a period.Logical formLearned from3 sentences. Lights may remain_on until a month.Logical formLearned from2 sentences. Units may be remain_oned.Logical formLearned from2 sentences. A notation may remain_on a transcript.Logical formLearned from2 sentences. A male may remain_on in a world-city.Logical formLearned from1 sentences.