Your RDF Query Language?

Description:Among the several hats I wear these days -- including Managing Editor of O'Reilly's XML.com -- I'm also a member of the Data Access Working Group (DAWG), which is working on standardizing a query language and access protocol for RDF, the lingua franca of the Semantic Web. The DAWG has recently released the 2nd draft of its Use Cases and Requirements doc, which we're encouraging people to read and comment on. This document contains an odd baker's dozen of use cases -- little stories where we think a standard RDF query language would help you get the job done.