A country may contribute to a report.Logical formLearned from24 sentences. A failure may contribute to a polarization that something-is-the-case.Logical formLearned from24 sentences. A country may contribute to peace.Logical formLearned from24 sentences. A family may contribute.Logical formLearned from23 sentences. Factors may contribute to a problem.Logical formLearned from23 sentences. A male may contribute songs.Logical formLearned from23 sentences. A male may contribute some songs.Logical formLearned from23 sentences. Factors may contribute to differences.Logical formLearned from23 sentences. Failure may contribute to a severity of an accident.Logical formLearned from23 sentences. A male may contribute to a win.Logical formLearned from23 sentences. Emissions may contribute to blankets of smog.Logical formLearned from23 sentences. Some (diabetes mellitus) may contribute to neurodegeneration.Logical formLearned from23 sentences. Activities may contribute.Logical formLearned from23 sentences. Some individuals may contribute.Logical formLearned from23 sentences. A news-service may contribute to a report.Logical formLearned from23 sentences.