A report can be a contribution.Logical formLearned from19 sentences. A contribution may be ignored.Logical formLearned from19 sentences. Contributions can be from some disciplines.Logical formLearned from19 sentences. Persons may make contributions.Logical formLearned from19 sentences. A value of contributions may apply.Logical formLearned from19 sentences. A contribution can be equivalent.Logical formLearned from19 sentences. Contributions can be to scientific knowledge.Logical formLearned from19 sentences. A contribution can be in a history.Logical formLearned from19 sentences. Respect can be to a contribution.Logical formLearned from19 sentences. A contribution may pertain-to components.Logical formLearned from19 sentences. Contributions can be to poetry.Logical formLearned from19 sentences. Contributions may pertain-to a nation.Logical formLearned from19 sentences. A contribution can be sensible.Logical formLearned from19 sentences. Contributions can be to community.Logical formLearned from19 sentences. Contributions can be to students.Logical formLearned from19 sentences.