# number of nodes
11
# end

# root
11
# end

# left-right order should be retained
# nodes (node#, name, label, instances)
1, "an", "Author"
2, "tn", "Title"
3, "pn", "Publisher/Date"
4, "sn", "Keywords"
5, "isbn", "ISBN"
6, "bi", "Binding", "Any Binding, Hardcover, Softcover"
7, "", "Attributes", "first edition, signed, dust jacket"
8, "prl", "min"
9, "prh", "to max"
10, "", "Price (US$)"
11, "", ""
# end

# (level by level top-down, start from root)
# edges 
11-1,2,3,4,5,6,7,10
10-8,9
# end