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"structure_string": "Tb2 Fe2 As2 O2\n1.0\n3.903115 -0.000000 0.000000\n0.000000 3.903115 0.000000\n-0.000000 0.000000 8.170941\nTb Fe As O\n2 2 2 2\ndirect\n0.749999 0.749999 0.861676 Tb\n0.250000 0.250000 0.138324 Tb\n0.749999 0.250000 0.500000 Fe\n0.250000 0.749999 0.500000 Fe\n0.749999 0.749999 0.345421 As\n0.250000 0.250000 0.654579 As\n0.749999 0.250000 0.000000 O\n0.250000 0.749999 0.000000 O\n",
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