Scientists may make contributions.Logical formLearned from26 sentences. A contribution may pertain-to a library.Logical formLearned from26 sentences. A contribution can be by a male.Logical formLearned from26 sentences. Contributions may pertain-to a family.Logical formLearned from26 sentences. A contribution may pertain-to psychology.Logical formLearned from26 sentences. Contributions can be to a quality of life.Logical formLearned from26 sentences. A contribution can be to employment.Logical formLearned from26 sentences. A bulk may pertain-to a contribution.Logical formLearned from26 sentences. A contribution may be considered.Logical formLearned from26 sentences. A contribution can be conceptual.Logical formLearned from26 sentences. Contributions can be to debates.Logical formLearned from26 sentences. Contributions can be to a history.Logical formLearned from26 sentences. Persons may make contributions.Logical formLearned from26 sentences. Contributions can be from partners.Logical formLearned from26 sentences. A contribution can be to letters.Logical formLearned from26 sentences.