A contribution can be with a bat.Logical formLearned from26 sentences. A contribution can be welcome.Logical formLearned from26 sentences. A world-city can be a contribution.Logical formLearned from25 sentences. Contributions can be to geometry.Logical formLearned from25 sentences. Contributions can be to an (engineering profession).Logical formLearned from25 sentences. Some contributions can be to a community.Logical formLearned from25 sentences. Contributions may include work.Logical formLearned from25 sentences. Contributions can be to (computer science).Logical formLearned from25 sentences. A contribution can be to a study.Logical formLearned from25 sentences. A contribution can be to radio.Logical formLearned from25 sentences. Contributions can be heroic.Logical formLearned from25 sentences. Contributions can be to an institution.Logical formLearned from25 sentences. A contribution can be to human rights.Logical formLearned from25 sentences. A contribution may pertain-to a group.Logical formLearned from25 sentences. A contribution can be to an anthology.Logical formLearned from25 sentences.