diff --git a/_test_simple.ifc b/_test_simple.ifc
index 98a54ac..d1f2d23 100644
--- a/_test_simple.ifc
+++ b/_test_simple.ifc
@@ -5951,7 +5951,7 @@ DATA;
 #9088=IFCDIRECTION((1.,0.,0.));
 #9089=IFCAXIS2PLACEMENT3D(#9086,#9087,#9088);
 #9090=IFCLOCALPLACEMENT(#8878,#9089);
-#9091=IFCWALL('3ou9hOwEP7DhWMecwJx0$Y',$,'ground-south',$,$,#9112,#10184,$,$);
+#9091=IFCWALL('3ou9hOwEP7DhWMecwJx0$Y',$,'ground-south',$,$,#9112,#10668,$,$);
 #9108=IFCCARTESIANPOINT((-2.,-3.,0.));
 #9109=IFCDIRECTION((0.,0.,1.));
 #9110=IFCDIRECTION((1.,0.,0.));
@@ -5959,7 +5959,7 @@ DATA;
 #9112=IFCLOCALPLACEMENT(#92,#9111);
 #9113=IFCMATERIALLAYERSETUSAGE(#142,.AXIS2.,.POSITIVE.,0.,$);
 #9114=IFCRELASSOCIATESMATERIAL('0bKElsPsTC_QKsv2GBSx3o',$,$,$,(#9091),#9113);
-#9115=IFCWALL('1TjS98sZLB2Or1TrgvTqoS',$,'ground-north',$,$,#9136,#10185,$,$);
+#9115=IFCWALL('1TjS98sZLB2Or1TrgvTqoS',$,'ground-north',$,$,#9136,#10669,$,$);
 #9132=IFCCARTESIANPOINT((2.,3.,0.));
 #9133=IFCDIRECTION((0.,0.,1.));
 #9134=IFCDIRECTION((-1.,0.,0.));
@@ -5967,10 +5967,10 @@ DATA;
 #9136=IFCLOCALPLACEMENT(#92,#9135);
 #9137=IFCMATERIALLAYERSETUSAGE(#142,.AXIS2.,.POSITIVE.,0.,$);
 #9138=IFCRELASSOCIATESMATERIAL('30lw3uTQXFdPYBwTZqSCEX',$,$,$,(#9115),#9137);
-#9139=IFCWALL('334h0HFIb7ZPSj6aYKtbiA',$,'ground-west',$,$,#10192,#10186,$,$);
+#9139=IFCWALL('334h0HFIb7ZPSj6aYKtbiA',$,'ground-west',$,$,#10192,#10670,$,$);
 #9161=IFCMATERIALLAYERSETUSAGE(#142,.AXIS2.,.POSITIVE.,0.,$);
 #9162=IFCRELASSOCIATESMATERIAL('34C$2hU$P1RP$NM8Jf$G$G',$,$,$,(#9139),#9161);
-#9163=IFCWALL('3z8H5PRJj7cgJH6Yj8TXMi',$,'ground-east',$,$,#9184,#10187,$,$);
+#9163=IFCWALL('3z8H5PRJj7cgJH6Yj8TXMi',$,'ground-east',$,$,#9184,#10671,$,$);
 #9180=IFCCARTESIANPOINT((2.,-3.,0.));
 #9181=IFCDIRECTION((0.,0.,1.));
 #9182=IFCDIRECTION((0.,1.,0.));
@@ -6359,50 +6359,6 @@ DATA;
 #10107=IFCDIRECTION((1.,0.,0.));
 #10108=IFCAXIS2PLACEMENT3D(#10105,#10106,#10107);
 #10109=IFCLOCALPLACEMENT(#2397,#10108);
-#10144=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.33),(4.4469861468613,0.33),(4.4469861468613,0.),(0.,0.)));
-#10145=IFCINDEXEDPOLYCURVE(#10144,$,.F.);
-#10146=IFCDIRECTION((0.,0.,1.));
-#10147=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10145);
-#10148=IFCCARTESIANPOINT((0.,0.,0.));
-#10149=IFCDIRECTION((0.,0.,1.));
-#10150=IFCDIRECTION((1.,0.,0.));
-#10151=IFCAXIS2PLACEMENT3D(#10148,#10149,#10150);
-#10152=IFCEXTRUDEDAREASOLID(#10147,#10151,#10146,3.);
-#10153=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10152));
-#10154=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.33),(6.01082176774142,0.33),(6.01082176774142,0.),(0.,0.)));
-#10155=IFCINDEXEDPOLYCURVE(#10154,$,.F.);
-#10156=IFCDIRECTION((0.,0.,1.));
-#10157=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10155);
-#10158=IFCCARTESIANPOINT((0.,0.,0.));
-#10159=IFCDIRECTION((0.,0.,1.));
-#10160=IFCDIRECTION((1.,0.,0.));
-#10161=IFCAXIS2PLACEMENT3D(#10158,#10159,#10160);
-#10162=IFCEXTRUDEDAREASOLID(#10157,#10161,#10156,3.);
-#10163=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10162));
-#10164=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.33),(6.68547543927383,0.33),(6.68547543927383,0.),(0.,0.)));
-#10165=IFCINDEXEDPOLYCURVE(#10164,$,.F.);
-#10166=IFCDIRECTION((0.,0.,1.));
-#10167=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10165);
-#10168=IFCCARTESIANPOINT((0.,0.,0.));
-#10169=IFCDIRECTION((0.,0.,1.));
-#10170=IFCDIRECTION((1.,0.,0.));
-#10171=IFCAXIS2PLACEMENT3D(#10168,#10169,#10170);
-#10172=IFCEXTRUDEDAREASOLID(#10167,#10171,#10166,3.);
-#10173=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10172));
-#10174=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.33),(6.5,0.33),(6.5,0.),(0.,0.)));
-#10175=IFCINDEXEDPOLYCURVE(#10174,$,.F.);
-#10176=IFCDIRECTION((0.,0.,1.));
-#10177=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10175);
-#10178=IFCCARTESIANPOINT((0.,0.,0.));
-#10179=IFCDIRECTION((0.,0.,1.));
-#10180=IFCDIRECTION((1.,0.,0.));
-#10181=IFCAXIS2PLACEMENT3D(#10178,#10179,#10180);
-#10182=IFCEXTRUDEDAREASOLID(#10177,#10181,#10176,3.);
-#10183=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10182));
-#10184=IFCPRODUCTDEFINITIONSHAPE($,$,(#10153));
-#10185=IFCPRODUCTDEFINITIONSHAPE($,$,(#10163));
-#10186=IFCPRODUCTDEFINITIONSHAPE($,$,(#10173));
-#10187=IFCPRODUCTDEFINITIONSHAPE($,$,(#10183));
 #10188=IFCCARTESIANPOINT((-3.44354057312012,3.,0.));
 #10189=IFCDIRECTION((0.,0.,1.));
 #10190=IFCDIRECTION((0.233915393914003,-0.972256955999831,0.));
@@ -6768,5 +6724,49 @@ DATA;
 #10625=IFCAXIS2PLACEMENT3D(#10622,#10623,#10624);
 #10626=IFCLOCALPLACEMENT(#92,#10625);
 #10627=IFCRELFILLSELEMENT('3sHJBZb_54deMUrRMsXdIO',$,$,$,#10599,#6076);
+#10628=IFCCARTESIANPOINTLIST2D(((0.0630355669956149,0.08),(-0.196986146861296,-0.25),(4.25,-0.25),(3.92,0.08)));
+#10629=IFCINDEXEDPOLYCURVE(#10628,(IFCLINEINDEX((1,2,3,4,1))),$);
+#10630=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10629);
+#10631=IFCCARTESIANPOINT((0.,0.,0.));
+#10632=IFCDIRECTION((0.,0.,1.));
+#10633=IFCDIRECTION((1.,0.,0.));
+#10634=IFCAXIS2PLACEMENT3D(#10631,#10632,#10633);
+#10635=IFCDIRECTION((0.,0.,1.));
+#10636=IFCEXTRUDEDAREASOLID(#10630,#10634,#10635,3.);
+#10637=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10636));
+#10638=IFCCARTESIANPOINTLIST2D(((0.08,0.08),(-0.25,-0.25),(5.76082176774142,-0.25),(5.3420105908413,0.08)));
+#10639=IFCINDEXEDPOLYCURVE(#10638,(IFCLINEINDEX((1,2,3,4,1))),$);
+#10640=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10639);
+#10641=IFCCARTESIANPOINT((0.,0.,0.));
+#10642=IFCDIRECTION((0.,0.,1.));
+#10643=IFCDIRECTION((1.,0.,0.));
+#10644=IFCAXIS2PLACEMENT3D(#10641,#10642,#10643);
+#10645=IFCDIRECTION((0.,0.,1.));
+#10646=IFCEXTRUDEDAREASOLID(#10640,#10644,#10645,3.);
+#10647=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10646));
+#10648=IFCCARTESIANPOINTLIST2D(((0.101529982278818,0.08),(-0.317281194621306,-0.25),(6.36819424465252,-0.25),(6.10817253079561,0.08)));
+#10649=IFCINDEXEDPOLYCURVE(#10648,(IFCLINEINDEX((1,2,3,4,1))),$);
+#10650=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10649);
+#10651=IFCCARTESIANPOINT((0.,0.,0.));
+#10652=IFCDIRECTION((0.,0.,1.));
+#10653=IFCDIRECTION((1.,0.,0.));
+#10654=IFCAXIS2PLACEMENT3D(#10651,#10652,#10653);
+#10655=IFCDIRECTION((0.,0.,1.));
+#10656=IFCEXTRUDEDAREASOLID(#10650,#10654,#10655,3.);
+#10657=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10656));
+#10658=IFCCARTESIANPOINTLIST2D(((0.080078125,0.08),(-0.25,-0.25),(6.25,-0.25),(5.919921875,0.08)));
+#10659=IFCINDEXEDPOLYCURVE(#10658,(IFCLINEINDEX((1,2,3,4,1))),$);
+#10660=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#10659);
+#10661=IFCCARTESIANPOINT((0.,0.,0.));
+#10662=IFCDIRECTION((0.,0.,1.));
+#10663=IFCDIRECTION((1.,0.,0.));
+#10664=IFCAXIS2PLACEMENT3D(#10661,#10662,#10663);
+#10665=IFCDIRECTION((0.,0.,1.));
+#10666=IFCEXTRUDEDAREASOLID(#10660,#10664,#10665,3.);
+#10667=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#10666));
+#10668=IFCPRODUCTDEFINITIONSHAPE($,$,(#10637));
+#10669=IFCPRODUCTDEFINITIONSHAPE($,$,(#10647));
+#10670=IFCPRODUCTDEFINITIONSHAPE($,$,(#10657));
+#10671=IFCPRODUCTDEFINITIONSHAPE($,$,(#10667));
 ENDSEC;
 END-ISO-10303-21;