A (core issue) can be that something-is-the-case.Logical formLearned from35 sentences. A core may pertain-to a concept.Logical formLearned from35 sentences. A core can be constituted-of-or-filled-with rock.Logical formLearned from35 sentences. A core can be constituted-of-or-filled-with fruit.Logical formLearned from35 sentences. Students may complete (core courses).Logical formLearned from35 sentences. A (core element) may pertain-to a world-city.Logical formLearned from35 sentences. A core can be constituted-of-or-filled-with teachers.Logical formLearned from35 sentences. A core may pertain-to a (peacekeeping force).Logical formLearned from35 sentences. Negotiations can be on (core issues).Logical formLearned from35 sentences. A (core argument) can be that something-is-the-case.Logical formLearned from35 sentences. An outer core can be fluid.Logical formLearned from34 sentences. A core may pertain-to a district.Logical formLearned from34 sentences. A core may pertain-to the moon.Logical formLearned from34 sentences. A core can be liberal.Logical formLearned from34 sentences. A person can be hard core.Logical formLearned from34 sentences.