{ "items" : [
    { "id" : "http://dbpedia.org/resource/Hesse's_theorem"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In geometry, Hesse's theorem, named for Otto Hesse,  states that if two pairs of opposite vertices of a quadrilateral are conjugate with respect to some conic, then so is the third pair. A quadrilateral with this property is called a Hesse quadrilateral."] } } }
