A person may contribute to a project.Logical formLearned from68 sentences. A male may contribute to a team.Logical formLearned from67 sentences. A male may contribute to an album.Logical formLearned from67 sentences. A person may contribute.Logical formLearned from66 sentences. A male may contribute vocals.Logical formLearned from65 sentences. A person may contribute to a problem.Logical formLearned from65 sentences. A country may contribute some percent.Logical formLearned from65 sentences. Factors may contribute.Logical formLearned from63 sentences. Some factors may contribute to a decline.Logical formLearned from62 sentences. Factors may contribute to a success.Logical formLearned from62 sentences. A male may contribute to publications.Logical formLearned from61 sentences. Members may contribute.Logical formLearned from61 sentences. A person may contribute to a blog.Logical formLearned from61 sentences. Human activity may contribute to global warming.Logical formLearned from60 sentences. A person may contribute to the world.Logical formLearned from59 sentences.