Operation may go_on in an area.Logical formLearned from4 sentences. A firing may go_on at a time.Logical formLearned from4 sentences. Games may go_on in a world-city.Logical formLearned from4 sentences. Problems may go_on in a country.Logical formLearned from4 sentences. A process may go_on under a procedure.Logical formLearned from4 sentences. Negotiations may go_on among delegations.Logical formLearned from4 sentences. An adjustment may go_on in an alignment.Logical formLearned from4 sentences. Talks may go_on without progress.Logical formLearned from4 sentences. Clashes may go_on for some hours.Logical formLearned from4 sentences. A democratic process may go_on in a country.Logical formLearned from4 sentences. An operation may go_on in a river.Logical formLearned from4 sentences. (Artillery fire) may go_on around an airport.Logical formLearned from4 sentences. Fighting may go_on around an airport.Logical formLearned from4 sentences. (Gangster attacks) may go_on from a territory.Logical formLearned from4 sentences. A country may go_on to finals.Logical formLearned from4 sentences.