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    { "id" : "http://dbpedia.org/resource/Liquid_hydrogen"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Liquid hydrogen (LH2 or LH2) is the liquid state of the element hydrogen. Hydrogen is found naturally in the molecular H2 form.To exist as a liquid, H2 must be cooled below hydrogen's critical point of 33 K. However, for hydrogen to be in a full liquid state without boiling at atmospheric pressure, it needs to be cooled to 20.28 K (−423.17 °F/−252.87°C). One common method of obtaining liquid hydrogen involves a compressor resembling a jet engine in both appearance and principle." ] ,
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        "http://dbpedia.org/ontology/iupacName" : [ "Liquid hydrogen" ] ,
        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Dihydrogen-2D-dimensions.png?width=300"] } } }
