Scores of airports can be closed.Logical formLearned from4 sentences. Half of schools can be closed.Logical formLearned from4 sentences. A vote can be in closed session.Logical formLearned from4 sentences. Some roads may remain closed to traffic.Logical formLearned from4 sentences. A county can be closed.Logical formLearned from4 sentences. A (center court roof) can be closed.Logical formLearned from4 sentences. A (gold market) may remain closed.Logical formLearned from4 sentences. A (session mid-morning) can be closed.Logical formLearned from4 sentences. An expo can be closed.Logical formLearned from3 sentences. A move can be closed.Logical formLearned from3 sentences. A (charity banquet) can be closed.Logical formLearned from3 sentences. A historical period can be closed.Logical formLearned from3 sentences. Some (polling centers) may remain closed.Logical formLearned from3 sentences. A (pipeline 6a) can be closed.Logical formLearned from3 sentences. Services may remain closed.Logical formLearned from3 sentences.