Reductions can be in contributions.Logical formLearned from20 sentences. A contribution can be to a local community.Logical formLearned from20 sentences. A contribution can be causal.Logical formLearned from20 sentences. A contribution can be to performance.Logical formLearned from20 sentences. Contributions may be deducted.Logical formLearned from20 sentences. Contributions can be to a (knowledge base).Logical formLearned from20 sentences. A contribution can be forced.Logical formLearned from20 sentences. A contribution can be to a solution.Logical formLearned from20 sentences. Contributions can be to (class discussions).Logical formLearned from20 sentences. Limitations can be on contributions.Logical formLearned from20 sentences. A contribution can be to global-climate change.Logical formLearned from20 sentences. Contributions can be to a life.Logical formLearned from20 sentences. An opening can be for making a contribution to the world.Logical formLearned from20 sentences. A contribution can be to a party.Logical formLearned from20 sentences. Contributions can be to a world-city.Logical formLearned from20 sentences.