{ "type":"REFERENCE", "value":"diamond", "sub-id":1, "data":[ [ [0.5,0.0],[1.0,0.5] ],[ [1.0,0.5],[0.5,1.0] ],[ [0.5,1.0],[0.0,0.5] ],[ [0.0,0.5],[0.5,0.0] ] ] }