Sites can be prehistoric.Logical formLearned from723 sentences. A bony fish can be prehistoric.Logical formLearned from657 sentences. An art can be prehistoric.Logical formLearned from300 sentences. Cultures can be prehistoric.Logical formLearned from285 sentences. A site can be prehistoric.Logical formLearned from280 sentences. A settlement can be prehistoric.Logical formLearned from256 sentences. Remains can be prehistoric.Logical formLearned from255 sentences. Artifacts can be prehistoric.Logical formLearned from211 sentences. A culture can be prehistoric.Logical formLearned from199 sentences. A past can be prehistoric.Logical formLearned from188 sentences. Humans can be prehistoric.Logical formLearned from187 sentences. A (sea creature) can be prehistoric.Logical formLearned from184 sentences. Settlements can be prehistoric.Logical formLearned from165 sentences. Monuments can be prehistoric.Logical formLearned from156 sentences. A world can be prehistoric.Logical formLearned from154 sentences.