Global warming may kill polar bears.Logical formLearned from42 sentences. (Black bears) may pertain-to a us-state.Logical formLearned from41 sentences. A bear can be dead.Logical formLearned from41 sentences. Some polar bears may change a color.Logical formLearned from41 sentences. A polar bear can be male.Logical formLearned from41 sentences. A person may get a bear.Logical formLearned from40 sentences. A gtr may be loaded for bear.Logical formLearned from40 sentences. A group can be constituted-of-or-filled-with bears.Logical formLearned from40 sentences. A word can be for bear.Logical formLearned from40 sentences. A bear can be green.Logical formLearned from40 sentences. Survival can be from a grasp of a russian bear.Logical formLearned from40 sentences. A (bear market) can be in stocks.Logical formLearned from40 sentences. A bear can be constituted-of-or-filled-with brain.Logical formLearned from40 sentences. (Bear cubs) can be black.Logical formLearned from40 sentences. A person may have a bear.Logical formLearned from39 sentences.