(Erection bridgings) may be required by a section.Logical formLearned from3 sentences. A (pressure enclosure) may undergo an erection.Logical formLearned from3 sentences. A part can be constituted-of-or-filled-with (steel erection).Logical formLearned from3 sentences. (Stone monuments) may undergo an erection.Logical formLearned from3 sentences. An astronomical observatory may undergo an erection.Logical formLearned from3 sentences. A male may arrange for an erection of schools.Logical formLearned from3 sentences. Erections can be pretentious.Logical formLearned from3 sentences. A date of an erection can be unknown.Logical formLearned from3 sentences. Displays may undergo an erection.Logical formLearned from3 sentences. Shelters may undergo an erection.Logical formLearned from3 sentences. A (parking garage) may undergo an erection.Logical formLearned from3 sentences. Governments may undergo an erection.Logical formLearned from3 sentences. A territory may undergo an erection.Logical formLearned from3 sentences. A kingdom may undergo an erection.Logical formLearned from3 sentences. Tribunals may undergo an erection.Logical formLearned from3 sentences.