/* Generate image with: dot -Tsvg 2006-11-13_studies_Trees.dot -o 2006-11-13_studies_Trees.svg */

digraph{
rankdir=LR
node[shape=box]
one[style=dashed label=""]
two[style=dashed label=""]
I[style=filled fillcolor=lightgray]
like[style=filled fillcolor=lightgray]
trees[style=filled fillcolor=lightgray]
one->I
one->two
two->like
two->trees
}