A contribution can be biological.Logical formLearned from17 sentences. Contributions can be to business.Logical formLearned from17 sentences. (Campaign contributions) can be from persons.Logical formLearned from17 sentences. Contributions may be acknowledged.Logical formLearned from17 sentences. A contribution can be to a series.Logical formLearned from17 sentences. A (budget contribution) can be regular.Logical formLearned from17 sentences. A contribution can be to a sound.Logical formLearned from17 sentences. Contributions can be to initiatives.Logical formLearned from17 sentences. Contributions may be spent.Logical formLearned from17 sentences. A contribution can be to military action.Logical formLearned from17 sentences. Contributions can be to astrophysics.Logical formLearned from17 sentences. Contributions can be out-of-pocket.Logical formLearned from17 sentences. Contributions can be equivalent.Logical formLearned from17 sentences. Contributions can be to a government-agency.Logical formLearned from17 sentences. Contributions can be in a volume.Logical formLearned from17 sentences.