A contribution can be to the world of music.Logical formLearned from20 sentences. Contributions may be recognised.Logical formLearned from20 sentences. Contribution can be to a program.Logical formLearned from20 sentences. Contributions may pertain-to factors.Logical formLearned from20 sentences. A contribution can be to prosperity.Logical formLearned from20 sentences. Contributions can be to human knowledge.Logical formLearned from20 sentences. (Budget contributions) can be regular.Logical formLearned from20 sentences. A contribution may make.Logical formLearned from20 sentences. Contributions can be from authorities.Logical formLearned from20 sentences. Forms can be constituted-of-or-filled-with contributions.Logical formLearned from20 sentences. Contributions can be constituted-of-or-filled-with employees.Logical formLearned from20 sentences. A contribution can be nondeductible.Logical formLearned from20 sentences. Contributions can be to debates.Logical formLearned from20 sentences. Contributions can be to engineering.Logical formLearned from20 sentences. A contribution can be to conservation.Logical formLearned from20 sentences.