[
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        } 
        "binding-potential-energy-per-formula" {
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            "si-unit" "kg m^2 / s^2" 
            "si-value" -1.089480111141049e-19
        } 
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    } 
    {
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        "prototype-label" {
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        "stoichiometric-species" {
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            "si-value" [
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        } 
        "temperature" {
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            "source-unit" "K" 
            "si-unit" "K" 
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        } 
        "coordinates-file" {
            "source-value" "instance-2.poscar"
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]