Contributions can be distinguished.Logical formLearned from724 sentences. Contributions can be from a male.Logical formLearned from708 sentences. A contribution can be useful.Logical formLearned from683 sentences. Contributions can be regular.Logical formLearned from646 sentences. A male may make a contribution.Logical formLearned from639 sentences. A contribution can be to society.Logical formLearned from631 sentences. A contribution can be strong.Logical formLearned from607 sentences. A contribution can be to a debate.Logical formLearned from584 sentences. A contribution may undergo recognition.Logical formLearned from536 sentences. Contributions can be meaningful.Logical formLearned from530 sentences. Contributions can be seminal.Logical formLearned from529 sentences. A contribution can be distinguished.Logical formLearned from527 sentences. A contribution can be to society.Logical formLearned from521 sentences. A contribution can be voluntary.Logical formLearned from518 sentences. Contributions can be to a field.Logical formLearned from514 sentences.