"type","value"
strict , "no"
digraph , "yes"
graph_id , "graph_30"
start_scope , "1"
node_id , "node_30"
open_bracket , "["
attribute_id , "color"
equals , "="
attribute_value , "red"
attribute_id , "fontcolor"
equals , "="
attribute_value , "green"
attribute_id , "label"
equals , "="
attribute_value , "<<table><tr><td>html-style label</td></tr></table>>"
close_bracket , "]"
end_scope , "1"