LinDA Workbench (QueryDesigner) should supply the visualisation tool with an RDF instead of a CSV

[lfarid]

It seems there are issues with parsing the CSV passed by the Linda WB to the visualisation tool in order to visualize a query.
The issues result in the visualization engine being not able to create an adequate recommendation because the data types are not parsed correctly.
Please see the following query: http://linda.epu.ntua.gr/query-designer/84/
@migalkin, @KlaudiaTH, @dipapaspyros , @judie90