A surface can be flat.Logical formLearned from162 sentences. The universe can be flat.Logical formLearned from161 sentences. Hair can be flat.Logical formLearned from160 sentences. A refusal can be flat.Logical formLearned from159 sentences. A .. can be flat.Logical formLearned from159 sentences. A (stock market) may close flat.Logical formLearned from158 sentences. Feet can be flat.Logical formLearned from158 sentences. A light can be flat.Logical formLearned from157 sentences. A place can be flat.Logical formLearned from157 sentences. Some issues can be flat.Logical formLearned from157 sentences. An edge can be flat.Logical formLearned from156 sentences. A yield can be flat.Logical formLearned from155 sentences. A course can be flat.Logical formLearned from155 sentences. A ceiling can be flat.Logical formLearned from153 sentences. Revenues can be flat.Logical formLearned from153 sentences.