A world-city can be flat.Logical formLearned from435 sentences. Revenue can be flat.Logical formLearned from430 sentences. Some stocks can be flat.Logical formLearned from429 sentences. Persons can be flat.Logical formLearned from421 sentences. A field can be flat.Logical formLearned from418 sentences. A voice can be flat.Logical formLearned from415 sentences. A spot can be flat.Logical formLearned from411 sentences. A part can be flat.Logical formLearned from410 sentences. A land can be flat.Logical formLearned from408 sentences. Stones can be flat.Logical formLearned from398 sentences. Stages can be flat.Logical formLearned from395 sentences. A performance can be flat.Logical formLearned from394 sentences. Fields can be flat.Logical formLearned from392 sentences. A floor can be flat.Logical formLearned from368 sentences. A tone can be flat.Logical formLearned from354 sentences.