Sharks can be extinct.Logical formLearned from10 sentences. Humanity may go extinct.Logical formLearned from10 sentences. A tree can be extinct.Logical formLearned from10 sentences. A turtle can be extinct.Logical formLearned from10 sentences. Monsters can be extinct.Logical formLearned from10 sentences. A branch of a family can be extinct.Logical formLearned from10 sentences. Tigers can be extinct in some years.Logical formLearned from10 sentences. Some percent can be extinct.Logical formLearned from10 sentences. Some percent of some species can be extinct.Logical formLearned from10 sentences. A type can be extinct.Logical formLearned from10 sentences. Persons can be extinct.Logical formLearned from10 sentences. A fish may go extinct.Logical formLearned from10 sentences. Human species can be extinct.Logical formLearned from10 sentences. Numbers of extinct birds can be on a rise.Logical formLearned from10 sentences. Dolphins can be extinct.Logical formLearned from10 sentences.