Cognition is a parser for both “upper case Semantic Web” (RDF, RDFa) and “lower case semantic web” (microformats) technologies. It includes modules for exporting parsed data in a variety of formats, including RDF, vCard, iCalendar, Atom and KML. Cognition is written in Perl 5 and licensed under the GNU GPL (v3).
This is a specification for a resource-centric serialisation of RDF in JSON. It aims to serialise RDF in a structure that is easy for developers to work with.