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RSAVAGE / Graph-Easy-Marpa-2.05 / data / class.group.06.tokens 
"key","name","value"
"class","edge",""
"attribute","color","white"
"class","group",""
"attribute","bgcolor","red"
"class","node.green",""
"attribute","color","green"
"attribute","shape","rect"
"push_subgraph","cluster.1",""
"node","node.1",""
"attribute","class","green"
"edge","->",""
"node","node.2",""
"pop_subgraph","cluster.1",""
"attribute","class","group"