Some persons may contribute to a project.Logical formLearned from13 sentences. Some artists may contribute to a release.Logical formLearned from13 sentences. Content may be written/wrote by contributting authors.Logical formLearned from13 sentences. Obesity may contribute to an increase.Logical formLearned from13 sentences. Mail may contribute to a blog.Logical formLearned from13 sentences. Mechanisms may contribute to risks.Logical formLearned from13 sentences. (Array apodosis) may be contributed.Logical formLearned from13 sentences. Services may contribute.Logical formLearned from13 sentences. A person may contribute to discussions.Logical formLearned from13 sentences. Nominee may contribute.Logical formLearned from13 sentences. A male may contribute to a site.Logical formLearned from13 sentences. A person may contribute some goals.Logical formLearned from13 sentences. Quarterly may contribute to a calculation of a tax.Logical formLearned from13 sentences. Employers may contribute.Logical formLearned from13 sentences. A person may contribute to a mural of life.Logical formLearned from13 sentences.