A referendum can be controversial.Logical formLearned from835 sentences. A provision can be controversial.Logical formLearned from822 sentences. A nature can be controversial.Logical formLearned from815 sentences. A case can be controversial.Logical formLearned from794 sentences. An election can be controversial.Logical formLearned from789 sentences. A call can be controversial.Logical formLearned from777 sentences. A penalty can be controversial.Logical formLearned from773 sentences. A (war shrine) can be controversial.Logical formLearned from744 sentences. A practice can be controversial.Logical formLearned from742 sentences. Work can be controversial.Logical formLearned from733 sentences. Proposals can be controversial.Logical formLearned from708 sentences. Aspects can be controversial.Logical formLearned from705 sentences. A goal can be controversial.Logical formLearned from695 sentences. Policies can be controversial.Logical formLearned from691 sentences. Figures can be controversial.Logical formLearned from681 sentences.