A contribution can be from a company.Logical formLearned from19 sentences. A contribution can be to (greenhouse gases).Logical formLearned from19 sentences. Contributions can be to a (blogger community).Logical formLearned from19 sentences. A contribution can be to a match.Logical formLearned from19 sentences. A contribution can be to a ticket.Logical formLearned from19 sentences. A contribution can be constituted-of-or-filled-with time.Logical formLearned from19 sentences. Contributions can be nigh.Logical formLearned from19 sentences. Losses may be invented as contributions.Logical formLearned from19 sentences. Contributions can be on institutions.Logical formLearned from19 sentences. (Missile defense) can be a contribution to a collective security.Logical formLearned from19 sentences. Some contributions can be for an issue.Logical formLearned from19 sentences. Contributions may pertain-to a political-leader.Logical formLearned from19 sentences. A contribution can be decisive.Logical formLearned from19 sentences. Contributions can be from some experts.Logical formLearned from19 sentences. A contribution can be to a contest.Logical formLearned from19 sentences.