Whales can be extinct.Logical formLearned from8 sentences. Dragons can be extinct.Logical formLearned from8 sentences. Turtles can be extinct.Logical formLearned from8 sentences. Some life can be extinct.Logical formLearned from8 sentences. Human species may go extinct.Logical formLearned from8 sentences. Big cats can be extinct.Logical formLearned from8 sentences. A tribe of christians can be extinct.Logical formLearned from8 sentences. A human race may go extinct.Logical formLearned from8 sentences. Lines can be extinct.Logical formLearned from8 sentences. Volcanoes can be extinct.Logical formLearned from8 sentences. A world-city can be extinct.Logical formLearned from8 sentences. A quagga can be extinct.Logical formLearned from8 sentences. Extinct animals may undergo reconstructions.Logical formLearned from8 sentences. (Mass communications) can be extinct.Logical formLearned from8 sentences. A slang can be extinct.Logical formLearned from8 sentences.