support faceted classification
http://www.jenitennison.com/2009/12/05/creating-linked-data-part-v-finishing-touches.html#derivable-data http://patterns.dataincubator.org/book/materialize-inferences.html
-
compute {super,sub}{Classes,Properties} -
display {super,sub}{Classes,Properties} -
compute skos relations -
display skos relations