Contributions can be to a local community.Logical formLearned from13 sentences. Contributions may pertain-to a general.Logical formLearned from13 sentences. Contribution can be to youth.Logical formLearned from13 sentences. A book may feature contributions.Logical formLearned from13 sentences. Contribution can be to work.Logical formLearned from13 sentences. Contributions can be pedagogical.Logical formLearned from13 sentences. Contributions can be to a (space program).Logical formLearned from13 sentences. Contributions can be to a library.Logical formLearned from13 sentences. Contributions can be to a blog.Logical formLearned from13 sentences. Contributions can be from some writers.Logical formLearned from13 sentences. Contributions may be listed.Logical formLearned from13 sentences. Contributions can be on topics.Logical formLearned from13 sentences. Employees can be subject to contributions.Logical formLearned from13 sentences. Contributions can be from journalists.Logical formLearned from13 sentences. Contributions can be to statistics.Logical formLearned from13 sentences.