Snippets, security and contexts

A pragmatic approach to storing and distributing RDF in context using Snippets "Snippets provide the means to represent a set of statements made about a particular subject and in a particular context. They may be stored conventionally using a bag of reified statements, or in a non-standard compact form using a much smaller number of triples. This compact representation is somewhat analogous to the use of quads to represent individual reified statements. The difference is that, while quads fall completely outside the specification, snippets may still be queried and transported in their compact form."