remove redundant ontology metadata file

[paulmillar]

Motivation:

PaNET currently contains two files with the same information. They differ only in which format that information is expressed. Tools exist that allow for automatic translation of this information. Moreover, duplicating information violates the normalisation principle and risks that inconsistencies are introduced.

Modification:

Remove the RDF/XML formatted file. This leaves the Turtle version as the definitive source of ontology metadata.

Result:

Duplicate information is removed.

Closes: #68

[agbeltran]

Thanks, Paul. Indeed, the main file to keep the ontology metadata is the turtle file - and I agree that we could only keep that one as long as the process to create the release is clear. The equivalent OWL file is created (via a tool) to be imported in the PaNET.owl file (whose release will be the file after reasoning). So, we could delete the redudant file if the process is clear, and better yet, automated (#25)

[paulmillar]

@agbeltran

I'm currently stuck on a problem that (I think) you could help, as described in #72.

The file source/PaNET.owl in our git repo contains this definition for PaNET01272 (after converting to Turtle):

<http://purl.org/pan-science/PaNET/PaNET01272> a owl:Class;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01004> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01271> ;
        rdfs:label       "nanofocus x-ray scattering" .

The build script runs the reasoner so it includes all superclasses. Therefore, the definition for the same term contains many more parent terms:

<http://purl.org/pan-science/PaNET/PaNET01272> a owl:Class;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00001> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00002> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00003> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00100> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00106> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET00200> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01004> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01012> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01184> ;
        rdfs:subClassOf  <http://purl.org/pan-science/PaNET/PaNET01271> ;
        rdfs:label       "nanofocus x-ray scattering" .

The problem is that I don't know which of these definitions is "correct".

[K-Syder]

File removed as required.