Persons can be extinct.Logical formLearned from13 sentences. Vultures can be extinct.Logical formLearned from13 sentences. A taxon can be extinct.Logical formLearned from12 sentences. A hominid can be extinct.Logical formLearned from12 sentences. A family may go extinct.Logical formLearned from12 sentences. (Ground sloths) can be extinct.Logical formLearned from12 sentences. A (life peerage) can be extinct.Logical formLearned from12 sentences. Cephalopods can be extinct.Logical formLearned from12 sentences. Some birds can be extinct.Logical formLearned from12 sentences. A name can be extinct.Logical formLearned from12 sentences. Floras can be extinct.Logical formLearned from12 sentences. Birds may go extinct.Logical formLearned from12 sentences. Some years can be extinct.Logical formLearned from12 sentences. Dogs can be extinct.Logical formLearned from12 sentences. Superego may get extinct.Logical formLearned from12 sentences.