[{"id":1,"text":"e-  67 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[200.9, 301.2, 125.8]},"children":[],"icon":"jstree-file"}, {"id":2,"text":"proton  108 MeV","data":{"start":[200.0, 300.0, 100.0],"end":[196.1, 296.9, 102.4]},"children":[],"icon":"jstree-file"}]