Agenda question

In http://www.w3.org/2005/Incubator/lld/wiki/F2F_Pittsburgh#Vocabularies_14:00-15:30_.2B_16:00-17:30

"Session activities: Looking of vocabularies in use cases and looking at them one by one. List classes of resources needed for use cases. Determine whether the current use cases mention them, whether the existing vocabularies cover their description adequately (if not, what are the gaps and what clarification are needed?), whether they are specified appropriately (expression of constraints, etc) and whether there is a need for alignments between them. Trying to generalise and about the issues related to these vocabularies in the way that Gordon has done in the piece that he posted."

What is the piece Gordon posted?

Thanks.

--Ray