@prefix rr: <http://www.w3.org/ns/r2rml#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix ex: <http://example.com/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@base <http://example.com/base/> .

<TriplesMap1>
    a rr:TriplesMap;

	rr:logicalTable [ rr:tableName  "\"IOUs\"" ];
	
    rr:subjectMap [
            rr:template "{\"fname\"}_{\"lname\"}_{\"amount\"}"; 
      ];

    rr:subjectMap [
            rr:template "{\"amount\"}_{\"fname\"}_{\"lname\"}"; 
      ];
    
    rr:predicateObjectMap
    [ 
      rr:predicate		ex:amount ; 
      rr:objectMap		[ rr:column "\"amount\""; ]
    ];
	.
