Chains of properties as facets

[ocorcho]

It would be interesting to provide the possibility of specifying chains of properties as facets in the facets.ttl file.

As an example, let's imagine that we have the following information:

city:local1 a city:LocalComercial .
city:local1 city:clasificacionEconomica _:node1 .
_:node1 city:epigrafeActividad city:476201 .
city:476201 a city:ActividadEconomica ;
rdfs:label "Comercio menor periódicos, revistas y artículos de papelería" ;
city:codigo "476201"^^xsd:int .
_:node1 city:seccionCNAE city:SeccionCNAEG .
city:SeccionCNAEG a city:SeccionCNAE .
city:SeccionCNAEG rdfs:label "CNAE Sección G" .
_:node1 city:divisionCNAE city:DivisionCNAE47 .
city:DivisionCNAE47 a city:DivisionCNAE .
city:DivisionCNAE47 rdfs:label "CNAE División 47" .

That is, a local has some classifications, and it would be interesting to be able to provide some depth into them, so as to select city:clasificacionEconomica/city:epigrafeActividad, city:clasificacionEconomica/city:seccionCNAE and city:clasificacionEconomica/city:divisionCNAE as the potential facets to use