A male may contribute with a bat.Logical formLearned from10 sentences. Efforts may contribute to results.Logical formLearned from10 sentences. A male may contribute to problems.Logical formLearned from10 sentences. Persons may contribute to a world.Logical formLearned from10 sentences. Employees may contribute to a report.Logical formLearned from10 sentences. A country may contribute a contingent to a (peacekeeping force).Logical formLearned from10 sentences. Factors may contribute to a slowdown.Logical formLearned from10 sentences. Bureaus may contribute to a report.Logical formLearned from10 sentences. A visit may contribute to a strengthening of relations.Logical formLearned from10 sentences. A country may contribute soldiers.Logical formLearned from10 sentences. Fear of a world-city may contribute to a boycott.Logical formLearned from10 sentences. (Business writer) may contribute to a report.Logical formLearned from10 sentences. A country may contribute to a war.Logical formLearned from10 sentences. (Brokerage upgrades) may contribute to gains.Logical formLearned from10 sentences. A family may contribute to a problem.Logical formLearned from10 sentences.