Factors may contribute to differences.Logical formLearned from12 sentences. A person may contribute to projects.Logical formLearned from12 sentences. A male may contribute an article.Logical formLearned from12 sentences. A person may contribute a story.Logical formLearned from12 sentences. A person may contribute to a fight.Logical formLearned from12 sentences. Active compounds may contribute to (health benefits) of brown rice.Logical formLearned from12 sentences. A male may contribute expertise.Logical formLearned from12 sentences. A male may contribute to a post.Logical formLearned from12 sentences. Everyone may contribute in some way.Logical formLearned from12 sentences. A person may contribute him-or-herself.Logical formLearned from12 sentences. Words may contribute.Logical formLearned from12 sentences. A male may contribute a point.Logical formLearned from12 sentences. A partner may contribute.Logical formLearned from12 sentences. A person may contribute a piece.Logical formLearned from12 sentences. Increases may contribute to an increase.Logical formLearned from12 sentences.