[
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        "property-id" "tag:staff@noreply.openkim.org,2023-02-21:property/binding-energy-crystal" 
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        "prototype-label" {
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        "binding-potential-energy-per-formula" {
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    {
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        "prototype-label" {
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        } 
        "stoichiometric-species" {
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        } 
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        } 
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        } 
        "coordinates-file" {
            "source-value" "instance-2.poscar"
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]