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"structure_string": "K1 Ba3 Fe8 As8\n1.0\n6.700412 -0.029611 1.983629\n-2.253687 7.552011 3.848523\n-0.023953 0.071375 7.848937\nK Ba Fe As\n1 3 8 8\ndirect\n0.000000 0.000000 0.000000 K\n-0.000033 0.492054 0.753915 Ba\n0.000000 0.000000 0.500000 Ba\n0.000033 0.507946 0.246085 Ba\n0.499648 0.874645 0.937406 Fe\n0.500491 0.874757 0.437831 Fe\n0.499313 0.375051 0.687642 Fe\n0.500142 0.375403 0.187258 Fe\n0.500352 0.125355 0.062594 Fe\n0.499858 0.624598 0.812742 Fe\n0.500687 0.624950 0.312358 Fe\n0.499509 0.125244 0.562169 Fe\n0.694115 0.173402 0.240140 As\n0.305714 0.326510 0.509955 As\n0.305770 0.325970 0.010929 As\n0.307281 0.826977 0.260047 As\n0.305885 0.826598 0.759860 As\n0.694286 0.673490 0.490045 As\n0.694230 0.674031 0.989071 As\n0.692719 0.173024 0.739953 As\n",
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