[
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        "short-name" {
            "source-value" [
                "hcp"
            ]
        } 
        "a" {
            "si-unit" "m" 
            "source-unit" "angstrom" 
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            "source-value" 4.462166860589571
        } 
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            "source-unit" "angstrom" 
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            "source-value" 7.496939340935521
        } 
        "temperature" {
            "si-unit" "K" 
            "source-unit" "K" 
            "si-value" 0.0 
            "source-value" 0
        } 
        "property-id" "tag:staff@noreply.openkim.org,2014-04-15:property/structure-hexagonal-crystal-npt" 
        "space-group" {
            "source-value" "P63/mmc"
        } 
        "basis-atom-coordinates" {
            "source-value" [
                [
                    0.0 
                    0.0 
                    0.0
                ] 
                [
                    0.6666666666666666 
                    0.3333333333333333 
                    0.5
                ]
            ]
        } 
        "cauchy-stress" {
            "si-unit" "kg / m s^2" 
            "source-unit" "GPa" 
            "si-value" [
                0.0 
                0.0 
                0.0 
                0.0 
                0.0 
                0.0
            ] 
            "source-value" [
                0.0 
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                0.0 
                0.0 
                0.0 
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            ]
        } 
        "species" {
            "source-value" [
                "Ni" 
                "Ni"
            ]
        } 
        "instance-id" 1
    } 
    {
        "short-name" {
            "source-value" [
                "hcp"
            ]
        } 
        "a" {
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            "source-unit" "angstrom" 
            "si-value" 4.46216686059e-10 
            "source-value" 4.462166860589571
        } 
        "c" {
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            "source-unit" "angstrom" 
            "si-value" 7.49693934094e-10 
            "source-value" 7.496939340935521
        } 
        "cohesive-free-energy" {
            "si-unit" "kg m^2 / s^2" 
            "source-unit" "eV" 
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            "source-value" 4.018198644963166
        } 
        "temperature" {
            "si-unit" "K" 
            "source-unit" "K" 
            "si-value" 0.0 
            "source-value" 0
        } 
        "property-id" "tag:staff@noreply.openkim.org,2014-04-15:property/cohesive-free-energy-hexagonal-crystal" 
        "space-group" {
            "source-value" "P63/mmc"
        } 
        "basis-atom-coordinates" {
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                    0.0 
                    0.0 
                    0.0
                ] 
                [
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                    0.5
                ]
            ]
        } 
        "species" {
            "source-value" [
                "Ni" 
                "Ni"
            ]
        } 
        "instance-id" 2
    }
]