This experiment converts an SQL version of WordNet 3.0 into a graph, using the python library graph-tool. In order to create a taxonomical structure, only noun synsets, hyponym links and hypernym links are considered.
The result of the conversion is saved as GraphML, then rendered as the following hairball:
Since the graph can be considered a tangled tree, i.e. a tree in which some nodes have multiple parents, two untangled versions (using longest and shortest paths) are also provided as GraphML. Only a few links are lost (about 2%), making the tree a good approximation of the noun taxonomy graph.