Lands can be closed.Logical formLearned from5 sentences. Construction can be closed.Logical formLearned from5 sentences. Persons may live in a closed system.Logical formLearned from5 sentences. A class can be closed.Logical formLearned from5 sentences. A closed session can be an item.Logical formLearned from5 sentences. Campgrounds can be closed.Logical formLearned from5 sentences. A rim can be closed.Logical formLearned from5 sentences. Barns can be closed.Logical formLearned from5 sentences. A heel can be closed.Logical formLearned from5 sentences. (Freight cars) can be closed.Logical formLearned from5 sentences. A commercial software can be closed.Logical formLearned from5 sentences. An arm can be closed.Logical formLearned from5 sentences. (Stock exchanges) can be closed.Logical formLearned from5 sentences. Social systems can be closed.Logical formLearned from5 sentences. Closed captions may undergo a transmission.Logical formLearned from5 sentences.