@prefix rr: <http://www.w3.org/ns/r2rml#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ex: <http://example.com/ns#> .
@prefix emp: <http://example.com/emp#> .
@prefix dept: <http://example.com/dept#> .
@prefix likes: <http://example.com/likes#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@base <http://example.com/base/> .

<TriplesMap1>
    a rr:TriplesMap;
    rr:logicalTable [ rr:sqlQuery """
       Select ('Department' || "deptno") AS deptId
            , "deptno"
            , "dname"
            , "loc"
         from "DEPT"
       """ ];

    rr:subjectMap [ rr:column "deptId"; rr:termType rr:BlankNode;
                    rr:inverseExpression "{\"deptno\"} = substr({deptId},length('Department')+1)"];

    rr:predicateObjectMap
    [ 
      rr:predicate		dept:deptno ; 
      rr:objectMap    [ rr:column "\"deptno\""; rr:datatype xsd:positiveInteger ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		dept:name ; 
      rr:objectMap    [ rr:column "\"dname\"" ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		dept:location ; 
      rr:objectMap    [ rr:column "\"loc\"" ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		dept:COMPANY ; 
      rr:objectMap		[ rr:constant "EXAMPLE Corporation"; ]
    ]
.


<jobtypeObjectMap>
    a rr:ObjectMap;
    rr:template "http://example.com/emp/job/{\"job\"}"
    .

<emptypeObjectMap>
    a rr:ObjectMap;
    rr:template "http://example.com/emp/etype/{\"etype\"}"
    .

<TriplesMap2>
    a rr:TriplesMap;

    rr:logicalTable [ rr:tableName "\"EMP\"" ];

    rr:subjectMap [ rr:template "http://example.com/emp/{\"empno\"}"; ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:jobtype ; 
      rr:objectMap    <jobtypeObjectMap>
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		rdf:type ; 
      rr:objectMap    <jobtypeObjectMap>
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:emptype ; 
      rr:objectMap    <emptypeObjectMap>
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		rdf:type ; 
      rr:objectMap    <emptypeObjectMap>
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:empno ; 
      rr:objectMap    [ rr:column "\"empno\"" ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:name ; 
      rr:objectMap    [ rr:column "\"ename\"" ]; 
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:job ; 
      rr:objectMap    [ rr:column "\"job\"" ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:deptNum ; 
      rr:objectMap    [ rr:column "\"deptno\"" ]
    ];

    rr:predicateObjectMap 
    [ 
      rr:predicate		emp:etype ; 
      rr:objectMap    [ rr:column "\"etype\"" ]
    ];

    rr:predicateObjectMap [
      rr:predicate		emp:c_ref_deptno ;
      rr:objectMap    [
      	a rr:RefObjectMap ;
        rr:parentTriplesMap <TriplesMap1>;
        rr:joinCondition [
          rr:child "\"deptno\"";
          rr:parent "\"deptno\"";
        ];
      ];
    ]
    .