Some countries may participate in an exposition.Logical formLearned from4 sentences. Some delegates may participate in a convention.Logical formLearned from4 sentences. Officials may participate in a discussion.Logical formLearned from4 sentences. Scientists may participate in an expedition.Logical formLearned from4 sentences. A total of some political parties may participate in elections.Logical formLearned from4 sentences. A tournament may be participated by some golfers.Logical formLearned from4 sentences. Pilots may participate in attacks.Logical formLearned from4 sentences. A country may participate in an implementation.Logical formLearned from4 sentences. Troops may participate in maneuvers.Logical formLearned from4 sentences. Foreign ministers may participate.Logical formLearned from4 sentences. Opposition may participate in elections.Logical formLearned from4 sentences. A person may participate in a fair.Logical formLearned from4 sentences. A person may participate in endeavors.Logical formLearned from4 sentences. A total of some exhibitors may participate in a show.Logical formLearned from4 sentences. Some manufacturers may participate in an exhibition.Logical formLearned from4 sentences.