An (art exhibit) can be controversial.Logical formLearned from40 sentences. A commission can be controversial.Logical formLearned from40 sentences. Weapons can be controversial.Logical formLearned from40 sentences. A battle can be controversial.Logical formLearned from40 sentences. A monument can be controversial.Logical formLearned from40 sentences. A revision can be controversial.Logical formLearned from40 sentences. A programming can be controversial.Logical formLearned from40 sentences. A (takeover bid) can be controversial.Logical formLearned from40 sentences. Remarks can be controversial.Logical formLearned from40 sentences. A strike can be controversial.Logical formLearned from40 sentences. A bombing can be controversial.Logical formLearned from40 sentences. A privatisation can be controversial.Logical formLearned from40 sentences. A painting can be controversial.Logical formLearned from39 sentences. A (refugee camp) can be controversial.Logical formLearned from39 sentences. A (carbon tax) can be controversial.Logical formLearned from39 sentences.