Human species can be extinct.Logical formLearned from12 sentences. Species of (land bird) can be extinct.Logical formLearned from12 sentences. Bones can be constituted-of-or-filled-with extinct animals.Logical formLearned from12 sentences. Trees can be extinct.Logical formLearned from12 sentences. Fish can be extinct.Logical formLearned from12 sentences. A kind can be extinct.Logical formLearned from11 sentences. Deer can be extinct.Logical formLearned from11 sentences. Radionuclides can be extinct.Logical formLearned from11 sentences. Some (plant species) can be extinct.Logical formLearned from11 sentences. Fossils can be constituted-of-or-filled-with extinct mammals.Logical formLearned from11 sentences. Marsupials can be extinct.Logical formLearned from11 sentences. Salmon can be extinct.Logical formLearned from11 sentences. A script can be extinct.Logical formLearned from11 sentences. A bison can be extinct.Logical formLearned from11 sentences. A category can be extinct.Logical formLearned from11 sentences.