{ "items" : [
    { "id" : "http://dbpedia.org/resource/Upsilon_meson"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The Upsilon meson (ϒ) is a quarkonium state (i.e. flavourless meson) formed from a bottom quark and its antiparticle. It was discovered by the E288 collaboration, headed by Leon Lederman, at Fermilab in 1977, and was the first particle containing a bottom quark to be discovered because it is the lightest that can be produced without additional massive particles.  It has a lifetime of 6980120999999999999♠1.21×10−20 s and a mass about 7000946000000000000♠9.46 GeV/c2 in the ground state." ] ,
        "http://xmlns.com/foaf/0.1/depiction" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Upsilon_peak.jpg" ] ,
        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Upsilon_peak.jpg?width=300"] } } }
