Some contributors can be to forces.Logical formLearned from5 sentences. Some contributors to forces may restrict use of forces to the north.Logical formLearned from5 sentences. A contributor can be for a country.Logical formLearned from5 sentences. Contributors can be to a presidential library.Logical formLearned from5 sentences. Contributor may list reasons.Logical formLearned from5 sentences. Contributors may include (construction firms).Logical formLearned from5 sentences. Contributors may have a time.Logical formLearned from5 sentences. A country can be (contributor nation).Logical formLearned from5 sentences. A contributor can be to a council.Logical formLearned from5 sentences. A (profit contributor) may pertain-to a company.Logical formLearned from5 sentences. Contributors can be to forums.Logical formLearned from5 sentences. A country can be a contributor to (peacekeeping operations).Logical formLearned from5 sentences. Countries can be contributors.Logical formLearned from5 sentences. A contributor can be to an agency.Logical formLearned from5 sentences. A country can be a contributor to a multinational force.Logical formLearned from5 sentences.