A (voting system) can be controversial.Logical formLearned from28 sentences. A house can be controversial.Logical formLearned from28 sentences. A code can be controversial.Logical formLearned from28 sentences. An unit can be controversial.Logical formLearned from28 sentences. Topics can be controversial.Logical formLearned from28 sentences. A candidacy can be controversial.Logical formLearned from28 sentences. A newspaper can be controversial.Logical formLearned from28 sentences. A tie-up can be controversial.Logical formLearned from28 sentences. An one-child policy can be controversial.Logical formLearned from28 sentences. (Interrogation tactics) can be controversial.Logical formLearned from28 sentences. A (media bill) can be controversial.Logical formLearned from28 sentences. Schemes can be controversial.Logical formLearned from28 sentences. A referee can be controversial.Logical formLearned from28 sentences. Picks can be controversial.Logical formLearned from28 sentences. (Pension reforms) can be controversial.Logical formLearned from28 sentences.