Some factors may contribute to a phenomenon.Logical formLearned from10 sentences. A female may contribute to research.Logical formLearned from10 sentences. A federal government may contribute funds.Logical formLearned from10 sentences. A male may contribute articles to newspaper.Logical formLearned from10 sentences. A female may contribute to some publications.Logical formLearned from10 sentences. Organizations may contribute.Logical formLearned from10 sentences. A number of factors may contribute to a decision.Logical formLearned from10 sentences. A male may contribute illustrations.Logical formLearned from10 sentences. A male may contribute to a programme.Logical formLearned from10 sentences. A male may contribute to some book.Logical formLearned from10 sentences. A female may contribute a column.Logical formLearned from10 sentences. Some countries may contribute to a fund.Logical formLearned from10 sentences. A country may contribute to a (war effort).Logical formLearned from10 sentences. A male may contribute a chapter to a book.Logical formLearned from10 sentences. A male may contribute to some initiatives.Logical formLearned from10 sentences.