node1 attr1,attr2=val2,attr3,attr4=val4,attr7,attr8=val8
node2 attr1,attr2=val2,attr3,attr4=val4,attr9,attr10=val10
node3 attr1,attr2=val2,attr3,attr4=val4,attr7,attr8=val8
node4 attr1,attr2=val2,attr3,attr4=val4,attr9,attr10=val10
node5 attr1,attr2=val2,attr5,attr6=val6,attr7,attr8=val8
node6 attr1,attr2=val2,attr5,attr6=val6,attr9,attr10=val10
node7 attr1,attr2=val2,attr5,attr6=val6,attr7,attr8=val8
node8 attr1,attr2=val2,attr5,attr6=val6,attr9,attr10=val10
