JT-60
JT-60 ( short for Japan Torus-60 ) is a large research tokamak , the flagship of Japan's magnetic fusion program , previously run by the Japan Atomic Energy Research Institute ( JAERI ) and currently run by the Japan Atomic Energy Agency's ( JAEA ) Naka Fusion Institute in Ibaraki Prefecture . 
<triplet> JT-60 <subj> tokamak <obj> instance of <subj> Japan Atomic Energy Agency <obj> operator <triplet> tokamak <subj> magnetic fusion <obj> uses <triplet> Japan <subj> Ibaraki Prefecture <obj> contains administrative territorial entity <triplet> Japan Atomic Energy Research Institute <subj> Japan <obj> country <subj> Japan Atomic Energy Agency <obj> replaced by <triplet> Japan Atomic Energy Agency <subj> Japan <obj> country <triplet> Ibaraki Prefecture <subj> Japan <obj> located in the administrative territorial entity