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"structure_string": "Li2\n1.0\n1.538769 -2.665227 0.000000\n1.538769 2.665227 0.000000\n0.000000 0.000000 4.922947\nLi\n2\ndirect\n0.333333 0.666667 0.250000 Li\n0.666667 0.333333 0.750000 Li\n",
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