const plane4 = { lines: [ [[0,1,2,3], [1,0,3,2], [2,3,0,1], [3,2,1,0]], [[0,2,3,1], [1,3,2,0], [2,0,1,3], [3,1,0,2]], [[0,3,1,2], [1,2,0,3], [2,1,3,0], [3,0,2,1]] ] };