{ "items" : [
    { "id" : "http://dbpedia.org/resource/Space_launch"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Space launch is the earliest part of a flight that reaches space. Space launch involves liftoff, when a rocket or other space launch vehicle leaves the ground, floating ship or midair aircraft at the start of a flight. Liftoff is of two main types: rocket launch (the current conventional method), and non-rocket spacelaunch (where other forms of propulsion are employed, including airbreathing jet engines or other kinds)."] } } }
