RIF FAQ

Also, please read over the RIF FAQ and make sure you still like the
answers.  I expect it will get some readers today.

    http://www.w3.org/2005/rules/wiki/RIF_FAQ

I note that "How do I embed RIF in an RDFS/OWL schema or
ontology?" (which I expanded on just now) motivates Axel's
import-of-RIF-from-RDF, done in SPARQL. 

 -- Sandro