nodedef>name VARCHAR,label VARCHAR,class VARCHAR, visible BOOLEAN,labelvisible BOOLEAN,width DOUBLE,height DOUBLE,x DOUBLE,y DOUBLE
s1,SiteA,blog,true,true,10.0,10.0,-52.11296,-25.921143
s2,SiteB,forum,true,true,10.986123,10.986123,-20.114172,25.740356
s3,SiteC,webpage,true,true,10.986123,10.986123,8.598924,-26.867584
edgedef>node1 VARCHAR,node2 VARCHAR,directed BOOLEAN
s1,s2,true
s2,s3,true
s3,s2,true
s3,s1,true

