A contribution may come at a time.Logical formLearned from14 sentences. A contribution can be revised.Logical formLearned from14 sentences. A contribution can be tireless.Logical formLearned from13 sentences. Contributions can be to victory.Logical formLearned from13 sentences. Contributions can be constituted-of-or-filled-with countries.Logical formLearned from13 sentences. A contribution can be to a post.Logical formLearned from13 sentences. A contribution can be to friendship.Logical formLearned from13 sentences. Contributions can be to a development of bilateral relations.Logical formLearned from13 sentences. A contribution can be to (peacekeeping operations).Logical formLearned from13 sentences. A shortage can be constituted-of-or-filled-with contributions.Logical formLearned from13 sentences. Contributions may be made by persons.Logical formLearned from13 sentences. A contribution can be to (world civilization).Logical formLearned from13 sentences. Contributions can be to construction.Logical formLearned from13 sentences. A contribution may pertain-to a (manufacturing sector).Logical formLearned from13 sentences. A contribution can be to marxist theory.Logical formLearned from13 sentences.