A student may bring_in a bear.Logical formLearned from5 sentences. A bear may be labelled with a name.Logical formLearned from5 sentences. Some bears can be dead.Logical formLearned from5 sentences. Polar bears may disappear.Logical formLearned from5 sentences. A person may study bears.Logical formLearned from5 sentences. Persons may feed a bear with a bottle.Logical formLearned from5 sentences. A threat can be to polar bears.Logical formLearned from5 sentences. Bears can be in jeopardy.Logical formLearned from5 sentences. Polar bears can be as threatened species.Logical formLearned from5 sentences. A girl may clutch a bear.Logical formLearned from5 sentences. A decline can be in (bear populations).Logical formLearned from5 sentences. A sign may pertain-to a bear.Logical formLearned from5 sentences. A bear can be fantastic.Logical formLearned from5 sentences. Polar bears may face extinction.Logical formLearned from5 sentences. A (bear population) may thrive.Logical formLearned from5 sentences.