Contributions can be to periodicals.Logical formLearned from17 sentences. A contribution can be to innovation.Logical formLearned from17 sentences. A contribution may be given.Logical formLearned from17 sentences. Contributions can be to a dialogue.Logical formLearned from17 sentences. Contributions can be to an art.Logical formLearned from17 sentences. Contributions may pertain-to a national-agency.Logical formLearned from17 sentences. Contributions can be from a city.Logical formLearned from17 sentences. Contributions can be to cinema.Logical formLearned from17 sentences. Contributions can be by women.Logical formLearned from17 sentences. A sum can be constituted-of-or-filled-with contributions.Logical formLearned from17 sentences. Contributions can be to football.Logical formLearned from17 sentences. Contributions can be to theoretical physics.Logical formLearned from17 sentences. Contributions can be in fields.Logical formLearned from17 sentences. Contributions may pertain-to a group.Logical formLearned from17 sentences. Persons may change an essence of a contribution.Logical formLearned from17 sentences.