Volcanoes can be extinct.Logical formLearned from13 sentences. Some (animal species) can be extinct.Logical formLearned from13 sentences. An ancestor can be extinct.Logical formLearned from13 sentences. Persons can be extinct.Logical formLearned from13 sentences. Fans can be extinct.Logical formLearned from13 sentences. A giant tortoise can be extinct.Logical formLearned from13 sentences. A flightless bird can be extinct.Logical formLearned from13 sentences. Some fish may be presumed extinct.Logical formLearned from13 sentences. Ap-parts of a law can be extinct.Logical formLearned from13 sentences. Types can be extinct.Logical formLearned from13 sentences. A fossil can be an extinct animal.Logical formLearned from13 sentences. Populations may go extinct.Logical formLearned from13 sentences. A hot spring can be extinct.Logical formLearned from13 sentences. (Life forms) can be extinct.Logical formLearned from13 sentences. Sloths can be extinct.Logical formLearned from13 sentences.