A country may contribute some troops to a mission.Logical formLearned from9 sentences. Exports may contribute.Logical formLearned from9 sentences. A development may contribute to peace.Logical formLearned from9 sentences. Countries may contribute troops to a (peacekeeping force).Logical formLearned from9 sentences. A country may contribute some troops to a (peacekeeping force).Logical formLearned from9 sentences. A female may contribute some assists.Logical formLearned from9 sentences. Persons may contribute to the economy.Logical formLearned from9 sentences. A funding may contribute.Logical formLearned from9 sentences. A private sector may contribute.Logical formLearned from9 sentences. A country may contribute to stability.Logical formLearned from9 sentences. Cooperation may contribute to stability.Logical formLearned from9 sentences. Factors may contribute to a failure.Logical formLearned from9 sentences. A male may contribute to a number of publications.Logical formLearned from9 sentences. A male may contribute articles to periodicals.Logical formLearned from9 sentences. A male may contribute to research.Logical formLearned from9 sentences.