..s can be extinct.Logical formLearned from14 sentences. Americanas can be extinct.Logical formLearned from14 sentences. A (palm tree) can be extinct.Logical formLearned from14 sentences. Some subspecies can be extinct.Logical formLearned from14 sentences. A dinosaur can be extinct.Logical formLearned from14 sentences. Elephants can be extinct.Logical formLearned from14 sentences. A prehistoric horse can be extinct.Logical formLearned from14 sentences. A list can be extinct.Logical formLearned from14 sentences. Butterflies can be extinct.Logical formLearned from13 sentences. Subspecies can be extinct.Logical formLearned from13 sentences. A horse can be extinct.Logical formLearned from13 sentences. Some populations can be extinct.Logical formLearned from13 sentences. Insects can be extinct.Logical formLearned from13 sentences. Newspaper can be extinct.Logical formLearned from13 sentences. An arthropod can be extinct.Logical formLearned from13 sentences.