grafnseljimca fu'ivla

x1 is a tree graph on nodes x2 (set of points), with edges x3 (set of ordered or unordered 2-tuples), with additional properties x4.

A graph with no cycles. The classifier rafsi of this word comes from the experimental gismu "grafu".

In notes:

x1 is a (general(ized)) heirarchical/pyramidal/directed tree-graph structure on underlying set x2 via partial ordering relation x3 (see notes for default properties).