@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix vs:      <http://www.w3.org/2003/06/sw-vocab-status/ns#> .

@prefix xt:      <http://purl.org/twc/ontology/cross-topix#> .

# Example:
#
# <http://todo.org/cross-topix/similarity/md512345>
#    xt:comparator_1 <http://ugly.org/wiki/A.html>;
#    xt:comparator_2 <http://ugly.org/wiki/B.html>;
#    xt:similarity .89
#.

xt:comparable_1
   a owl:ObjectProperty;
   rdfs:label "comparable 1";
   rdfs:comment "The first thing that is being compared.";
   rdfs:domain xt:Comparison;
   rdfs:subPropertyOf xt:comparable;
.

xt:comparable_2
   a owl:ObjectProperty;
   rdfs:label "comparable 2";
   rdfs:comment "The second thing that is being compared.";
   rdfs:domain xt:Comparison;
   rdfs:subPropertyOf xt:comparable;
.

xt:similarity
   a owl:DatatypeProperty;
   rdfs:label "similarity";
   rdfs:comment "A quantity characterizing the similarity of the resources cited.";
   rdfs:domain xt:Comparison;
   rdfs:range xsd:decimal;
.

xt:Comparison
   a owl:Class;
   rdfs:label "Comparison";
   rdfs:comment "A quantified comparison of two resources.";
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:comparable_1;
      owl:cardinality 1;
   ];
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:comparable_2;
      owl:cardinality 1;
   ];
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:similarity;
      owl:cardinality 1;
   ];
.

xt:ComparisonReview
   a owl:Class;
   rdfs:label "ComparisonReview";
   rdfs:comment "An acceptance or rejection of a xt:Comparison.";
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:user_name;
      owl:cardinality 1;
   ];
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:comparison;
      owl:cardinality 1;
   ];
   rdfs:subClassOf [
      a owl:Restriction;
      owl:onProperty xt:accepted;
      owl:cardinality 1;
   ];
.

xt:user_name
   a owl:DatatypeProperty;
   rdfs:label "user name";
   rdfs:comment "A string citing a user-entered name for themselves.";
   rdfs:range rdfs:Literal;
.

xt:comparison
   a owl:DatatypeProperty;
   rdfs:label "comparison";
   rdfs:comment "The Comparison that the user accepts or rejects.";
   rdfs:range xt:Comparison;
.

xt:accepted
   a owl:DatatypeProperty;
   rdfs:label "accepted";
   rdfs:comment "Whether the user accpets or rejects the Comparison.";
   rdfs:range xsd:boolean;
.