A contribution can be indispensable.Logical formLearned from13 sentences. A contribution may matter.Logical formLearned from13 sentences. Contributions can be to (welfare economics).Logical formLearned from13 sentences. Knowledge may pertain-to contributions.Logical formLearned from13 sentences. A contribution can be to a fund.Logical formLearned from13 sentences. Contributions can be to a discovery of (field particles).Logical formLearned from13 sentences. Contributions can be from allies.Logical formLearned from13 sentences. A contribution can be to a recovery.Logical formLearned from13 sentences. A female may receive contributions.Logical formLearned from13 sentences. A male may take (campaign contributions).Logical formLearned from13 sentences. Contributions can be to a (space station).Logical formLearned from13 sentences. A contribution can be to charity.Logical formLearned from13 sentences. Contributions can be for primary elections.Logical formLearned from13 sentences. A contribution can be to a debate.Logical formLearned from13 sentences. A contribution can be to macroeconomics.Logical formLearned from13 sentences.