Contributions can be from a public.Logical formLearned from92 sentences. Contributions can be from a community.Logical formLearned from92 sentences. A contribution may pertain-to a political-leader.Logical formLearned from92 sentences. A contribution can be to a society.Logical formLearned from91 sentences. Contributions may pertain-to members.Logical formLearned from91 sentences. Contributions may pertain-to a professor.Logical formLearned from91 sentences. Exchange can be for contributions.Logical formLearned from91 sentences. A contribution may help.Logical formLearned from91 sentences. Contributions can be from citizens.Logical formLearned from91 sentences. Persons may appreciate a contribution.Logical formLearned from90 sentences. Contributions can be serious.Logical formLearned from90 sentences. A ban can be on contributions.Logical formLearned from90 sentences. A contribution may pertain-to a private sector.Logical formLearned from90 sentences. A contribution can be innovative.Logical formLearned from89 sentences. Contributions can be effective.Logical formLearned from89 sentences.