Task: Text Categorization
Input (English): The Borda method fails to satisfy this theorem and when multiple alternatives are available, a cyclic majority can be overcome by Condorcet preferences. It can be weakened but not entirely overcome for instances governed by Gibbard's theorem where the application of a quasi-transitive, weakly Paretian aggregation rule produces an (*) oligarchy. For 10 points a universal domain, independence from irrelevant alternatives, non-dictatorship, and Pareto efficiency are not all simultaneously attainable in a voting system according to what theorem of social choice theory.
Output (English): Social Science