I really wish that I could attend. We ask a lot of questions like:

Find all Nodes with a property in a tree

Find all leaves L of those nodes

Find all annotations in a DAG of those leaves

Collapse similar DAG entries by backtracking up the graph based on edge weights

Writes are bulk loaded, and right now, we are just trying to push all of the graph stuff offline, but there are some limitations to that, and we could really up our accuracy by being able to perform these queries quickly.