Resource Description Framework

There are seems to be also some tools to visualize data by accessing to a SPARQL endpoint (e.g. Apache Jena Fuseki provides the possibility to have a SPARQL endpoint, in addition to publicly available SPARQL endpoints, if that's of an interest). This might be a bit off-topic, but I hope at least related to your challenge :)

One of the useful tool for visualization of RDF data is WebVOWL - http://visualdataweb.de/webvowl/. It supports RDF data in XML as well as in Turtle (TTL) formats and allows complex visualization of data.

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