Lagoons can be extinct.Logical formLearned from3 sentences. Gavialoids can be extinct.Logical formLearned from3 sentences. An object can be an extinct comet.Logical formLearned from3 sentences. A (bony fish) can be extinct.Logical formLearned from3 sentences. Alligatorines can be extinct.Logical formLearned from3 sentences. A trilobite can be extinct.Logical formLearned from3 sentences. A program can be extinct.Logical formLearned from3 sentences. A bat can be extinct.Logical formLearned from3 sentences. Half of species can be extinct.Logical formLearned from3 sentences. A (royal family) can be extinct.Logical formLearned from3 sentences. A (sea turtle) can be extinct.Logical formLearned from3 sentences. An ethnonym can be extinct.Logical formLearned from3 sentences. A mountain can be an extinct volcano.Logical formLearned from3 sentences. A marine mammal can be extinct.Logical formLearned from3 sentences. (Family amphicyonidaes) can be extinct.Logical formLearned from3 sentences.