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"structure_string": "Li3 Ca1\n1.0\n-2.190074 2.190074 4.774115\n2.190074 -2.190074 4.774115\n2.190074 2.190074 -4.774115\nCa Li\n1 3\ndirect\n0.000000 0.000000 0.000000 Ca\n0.499999 0.499999 0.000000 Li\n0.750002 0.250000 0.500001 Li\n0.250000 0.750002 0.500001 Li\n",
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