Complex query configuration file

[mchiaraf]

I have a question about the configuration file. I want to align all the instances of architectural property of my Knowledge Graph with DBpedia instances.
The properties that I need to compare are the name of the building and its location. The problem is that for both (name and location) we don't have a direct data property, but we have n-ary relations, represented as follow:

name ?building dd:hasDesignationInTime ?DesignationInTime . ?DesignationInTime rdfs:label ?name

location ?building loc:hasCulturalPropertyAddress ?Address . ?Address clv:hasCity ?City . ?City rdfs:label ?location

The problem is: if the variable is "building", I don't have direct properties that can be compared with the properties in dbpedia. Do you have any suggestions for properly formatting the configuration file?

Thanks in advance for the great work!

[KonradHoeffner]

I am not a LIMES developer but as far as I know you can use "n-ary relations" (as in multi-hop) using SPARQL 1.1. property syntax.

In your example, such paths could be:

• <PROPERTY>dd:hasDesignationInTime/rdfs:label RENAME name</PROPERTY>
• <PROPERTY>loc:hasCulturalPropertyAddress/civ:hasCity/rdfs:label RENAME location</PROPERTY>

[MSherif]

Yes, exactly as @KonradHoeffner mentioned, you could use propriety paths (https://www.w3.org/TR/sparql11-property-paths/) like the one in the example in the LIMES manual:

<PROPERTY>geom:geometry/geos:asWKT RENAME polygon</PROPERTY>

See the full example config at http://dice-group.github.io/LIMES/#/user_manual/configuration_file/configuration-file-examples?id=configuration-file-examples