Contribution may be made.Logical formLearned from16 sentences. Contribution can be to (class discussion).Logical formLearned from16 sentences. A contribution can be helpful.Logical formLearned from16 sentences. A person may ask for contributions.Logical formLearned from16 sentences. Contributions can be to human progress.Logical formLearned from16 sentences. Contributions can be to a curriculum.Logical formLearned from16 sentences. A contribution can be diffuse.Logical formLearned from16 sentences. A contribution can be to an experience.Logical formLearned from16 sentences. Contributions can be to friendship.Logical formLearned from16 sentences. Contributions may undergo an evaluation.Logical formLearned from16 sentences. A contribution can be to a collection.Logical formLearned from16 sentences. A contribution can be to production.Logical formLearned from16 sentences. Contributions can be to a business.Logical formLearned from16 sentences. Contributions can be to retirement.Logical formLearned from16 sentences. A source can be constituted-of-or-filled-with contributions.Logical formLearned from16 sentences.