I want to graph both the agora as a whole and the context of a node in the agora, as per agora ui. This requires:
- create a branch. Done: 'graph'.
decide whether to
- hardcode a path, say /agora-graph, to be a handler specialized in this. Probably the quickest, but it doesn't show the "agora spirit" as much.
- use runnable subnodes; essentially implement run or exec plus
- do rdf first: expose rdf for the agora and use something like rdf grapher to graph