A male may contribute to a campaign.Logical formLearned from48 sentences. A male may contribute to some books.Logical formLearned from48 sentences. A male may contribute some articles.Logical formLearned from48 sentences. A male may contribute to a magazine.Logical formLearned from48 sentences. A country may contribute some troops.Logical formLearned from48 sentences. A female may contribute vocals.Logical formLearned from47 sentences. A government may contribute.Logical formLearned from47 sentences. Money may be contributed.Logical formLearned from47 sentences. Someone may contribute.Logical formLearned from47 sentences. Writers may contribute.Logical formLearned from46 sentences. Factors may contribute to a rise.Logical formLearned from46 sentences. Players may contribute.Logical formLearned from46 sentences. Note may contribute to a report.Logical formLearned from46 sentences. An individual may contribute to a candidate.Logical formLearned from46 sentences. Factors may contribute to a decline.Logical formLearned from45 sentences.