{
  "nodes": [
    {"id": "Nginx", "x": 3, "y": 1, "color": "rgb(255,204,102)", "size": 4.0},
    {"id": "Wordpress", "x": 9, "y": 3, "size": 3},
    {"id": "Memcached", "x": 7, "y": 5, "size": 3},
    {"id": "Percona", "x": 6, "y": 7, "size": 3},
    {"id": "NFS", "x": 3, "y": 5, "size": 3}
  ],
  "edges": [
    {"id": "1", "source": "Nginx", "target": "Wordpress"},
    {"id": "2", "source": "Wordpress", "target": "Memcached"},
    {"id": "3", "source": "Wordpress", "target": "NFS"},
    {"id": "4", "source": "Wordpress", "target": "Percona"}
  ]
}