RDF
From ToxBank API Wiki
The following RDF formats are supported by ToxBank services:
Content-type: text/plain - Very simple - Fairly human readable - Efficient (de)serialization - No prefixes (verbosity can be reduced by zip/gzip compression)
Content-type: text/turtle - Terse and human readable
Content-type: application/rdf+xml - Wide support - Verbose - Compatibility with external services