{ "items" : [
    { "id" : "http://dbpedia.org/resource/XPL"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "XPL is a programming language based on PL/I, and a portable one-pass compiler written in its own language, and a parser generator tool for easily implementing similar compilers for other languages.  XPL was designed in 1967 as a way to teach compiler design principles and as starting point for students to build compilers for their own languages.XPL was designed and implemented by William McKeeman and David B. Wortman at University of California, Santa Cruz and James J."] } } }
