An (air lock) may begin a weekend.Logical formLearned from42 sentences. A person may begin a drive.Logical formLearned from42 sentences. A military may begin an offensive.Logical formLearned from42 sentences. A half of a season may begin.Logical formLearned from42 sentences. Security may begin.Logical formLearned from42 sentences. A person may begin a role.Logical formLearned from41 sentences. An international conference may begin.Logical formLearned from41 sentences. A (flood season) may begin.Logical formLearned from41 sentences. A (ground assault) may begin.Logical formLearned from41 sentences. A male may begin service.Logical formLearned from41 sentences. A male may begin involvement.Logical formLearned from41 sentences. Incidents may begin.Logical formLearned from41 sentences. A (calendar season) may begin in a month.Logical formLearned from41 sentences. A title may begin.Logical formLearned from41 sentences. A name may begin with a letter.Logical formLearned from41 sentences.