A virus can be extinct.Logical formLearned from4 sentences. Brands can be extinct.Logical formLearned from4 sentences. A kind can be extinct.Logical formLearned from4 sentences. Quadrupeds can be extinct.Logical formLearned from4 sentences. Extinct animals may fall_in between groups.Logical formLearned from4 sentences. Moas can be extinct.Logical formLearned from4 sentences. Mammalias can be extinct.Logical formLearned from4 sentences. Books can be extinct.Logical formLearned from4 sentences. A profession can be extinct.Logical formLearned from4 sentences. A buffalo can be extinct.Logical formLearned from4 sentences. Trees may go extinct.Logical formLearned from4 sentences. A salmon can be extinct.Logical formLearned from4 sentences. Some species may be become extinct.Logical formLearned from4 sentences. A word can be extinct.Logical formLearned from4 sentences. A bird may go extinct.Logical formLearned from4 sentences.