diff --git a/_test_simple.ifc b/_test_simple.ifc
index 5d39b4c..3df40df 100644
--- a/_test_simple.ifc
+++ b/_test_simple.ifc
@@ -84,7 +84,7 @@ DATA;
 #97=IFCAXIS2PLACEMENT3D(#94,#95,#96);
 #98=IFCLOCALPLACEMENT(#82,#97);
 #99=IFCELEMENTASSEMBLY('1JMWfAC15Dh9jLMGikyiLb',$,'exterior',$,$,#110,$,$,$,$);
-#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#4285,#5234,#5047,#3095,#5072,#4320,#5456,#2524,#5022,#2162,#1653,#99,#1305),#86);
+#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#4285,#5662,#5234,#5047,#3095,#5072,#4320,#5456,#2524,#5022,#2162,#5620,#1653,#99,#1305,#5639,#5661),#86);
 #106=IFCCARTESIANPOINT((-3.44354057312012,3.,0.));
 #107=IFCDIRECTION((0.,0.,1.));
 #108=IFCDIRECTION((0.233915393914003,-0.972256955999831,0.));
@@ -2584,7 +2584,7 @@ DATA;
 #3012=IFCPROPERTYSET('1jHxdeBez1F8uvGWAJhEIJ',$,'Pset_SpaceCommon',$,(#3014));
 #3013=IFCRELDEFINESBYPROPERTIES('1iYv2Hydr9bQO7buSFII39',$,$,$,(#2997),#3012);
 #3014=IFCPROPERTYSINGLEVALUE('IsExternal',$,IFCBOOLEAN(.F.),$);
-#3015=IFCRELAGGREGATES('0y8lFrzdz3_uCdx3B21FaQ',$,$,$,#86,(#5382,#2997));
+#3015=IFCRELAGGREGATES('0y8lFrzdz3_uCdx3B21FaQ',$,$,$,#86,(#5382,#2997,#5606));
 #3016=IFCCARTESIANPOINT((1.92000000000987,2.919921875));
 #3017=IFCCARTESIANPOINT((-3.3420105908413,2.92));
 #3018=IFCCARTESIANPOINT((-1.93696443300439,-2.92));
@@ -4496,5 +4496,84 @@ DATA;
 #5603=IFCPROPERTYSINGLEVALUE('PatternNumber',$,IFCLABEL('160'),$);
 #5604=IFCPROPERTYSINGLEVALUE('PatternName',$,IFCLABEL('Building Edge'),$);
 #5605=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('Fire exit on south wall (west third), 45+ degrees separation from main entrance. Opens outward to south, clear of porch and main approach route. Second means of egress per fire safety regulations.'),$);
+#5606=IFCSPACE('173GIgzj1F8uSIEIB84L3i',$,'south-garden/0',$,$,#5611,$,$,$,.EXTERNAL.,$);
+#5607=IFCCARTESIANPOINT((-4.,-13.,0.02));
+#5608=IFCDIRECTION((0.,0.,1.));
+#5609=IFCDIRECTION((1.,0.,0.));
+#5610=IFCAXIS2PLACEMENT3D(#5607,#5608,#5609);
+#5611=IFCLOCALPLACEMENT(#92,#5610);
+#5612=IFCPROPERTYSET('0jiskI5jj76vQwqc$MBkTr',$,'Pset_SpaceCommon',$,(#5614));
+#5613=IFCRELDEFINESBYPROPERTIES('0P$oEScov8LwPYAwaW5MNO',$,$,$,(#5606),#5612);
+#5614=IFCPROPERTYSINGLEVALUE('IsExternal',$,IFCBOOLEAN(.T.),$);
+#5615=IFCPROPERTYSET('3Nrt6_B4LAhQDkbiP_f9D9',$,'EPset_Pattern',$,(#5617,#5618,#5619));
+#5616=IFCRELDEFINESBYPROPERTIES('3dZAiMqTHF5egOIfJ8BfUd',$,$,$,(#5606),#5615);
+#5617=IFCPROPERTYSINGLEVALUE('PatternNumber',$,IFCLABEL('105/161/163'),$);
+#5618=IFCPROPERTYSINGLEVALUE('PatternName',$,IFCLABEL('South Facing Outdoors / Sunny Place / Outdoor Room'),$);
+#5619=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('8m x 10m south-facing outdoor gathering space, enclosed on three sides by 0.45m sitting walls. North side bounded by building south face. Suitable for outdoor events, markets, performances. Faces south for maximum sun per Pattern 105.'),$);
+#5620=IFCCOVERING('0Ys7lufvz8PBxylnj8wcey',$,'south-garden paving',$,$,#5638,#5628,$,.FLOORING.);
+#5621=IFCCARTESIANPOINTLIST2D(((0.,0.),(8.,0.),(8.,10.),(0.,10.)));
+#5622=IFCINDEXEDPOLYCURVE(#5621,$,$);
+#5623=IFCDIRECTION((0.,0.,1.));
+#5624=IFCDIRECTION((-0.,-0.,-1.));
+#5625=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#5622);
+#5626=IFCEXTRUDEDAREASOLID(#5625,$,#5624,0.05);
+#5627=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#5626));
+#5628=IFCPRODUCTDEFINITIONSHAPE($,$,(#5627));
+#5634=IFCCARTESIANPOINT((-4.,-13.,0.));
+#5635=IFCDIRECTION((0.,0.,1.));
+#5636=IFCDIRECTION((1.,0.,0.));
+#5637=IFCAXIS2PLACEMENT3D(#5634,#5635,#5636);
+#5638=IFCLOCALPLACEMENT(#92,#5637);
+#5639=IFCWALL('3FZ$rYHT18KhcyaMAIYJiM',$,'south garden sitting wall south',$,$,#5660,#5650,$,$);
+#5640=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.3),(8.,0.3),(8.,0.),(0.,0.)));
+#5641=IFCINDEXEDPOLYCURVE(#5640,$,.F.);
+#5642=IFCDIRECTION((0.,0.,1.));
+#5643=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#5641);
+#5644=IFCCARTESIANPOINT((0.,0.,0.));
+#5645=IFCDIRECTION((0.,0.,1.));
+#5646=IFCDIRECTION((1.,0.,0.));
+#5647=IFCAXIS2PLACEMENT3D(#5644,#5645,#5646);
+#5648=IFCEXTRUDEDAREASOLID(#5643,#5647,#5642,0.45);
+#5649=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#5648));
+#5650=IFCPRODUCTDEFINITIONSHAPE($,$,(#5649));
+#5656=IFCCARTESIANPOINT((-4.,-13.,0.));
+#5657=IFCDIRECTION((0.,0.,1.));
+#5658=IFCDIRECTION((1.,0.,0.));
+#5659=IFCAXIS2PLACEMENT3D(#5656,#5657,#5658);
+#5660=IFCLOCALPLACEMENT(#92,#5659);
+#5661=IFCWALL('2HMMcWKpn91RqSXsX2A5pf',$,'south garden sitting wall west',$,$,#5704,#5683,$,$);
+#5662=IFCWALL('1PPbGfSsP5sgeKjEOH9oJB',$,'south garden sitting wall east',$,$,#5699,#5684,$,$);
+#5663=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.3),(10.,0.3),(10.,0.),(0.,0.)));
+#5664=IFCINDEXEDPOLYCURVE(#5663,$,.F.);
+#5665=IFCDIRECTION((0.,0.,1.));
+#5666=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#5664);
+#5667=IFCCARTESIANPOINT((0.,0.,0.));
+#5668=IFCDIRECTION((0.,0.,1.));
+#5669=IFCDIRECTION((1.,0.,0.));
+#5670=IFCAXIS2PLACEMENT3D(#5667,#5668,#5669);
+#5671=IFCEXTRUDEDAREASOLID(#5666,#5670,#5665,0.45);
+#5672=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#5671));
+#5673=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.,0.3),(10.,0.3),(10.,0.),(0.,0.)));
+#5674=IFCINDEXEDPOLYCURVE(#5673,$,.F.);
+#5675=IFCDIRECTION((0.,0.,1.));
+#5676=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#5674);
+#5677=IFCCARTESIANPOINT((0.,0.,0.));
+#5678=IFCDIRECTION((0.,0.,1.));
+#5679=IFCDIRECTION((1.,0.,0.));
+#5680=IFCAXIS2PLACEMENT3D(#5677,#5678,#5679);
+#5681=IFCEXTRUDEDAREASOLID(#5676,#5680,#5675,0.45);
+#5682=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#5681));
+#5683=IFCPRODUCTDEFINITIONSHAPE($,$,(#5672));
+#5684=IFCPRODUCTDEFINITIONSHAPE($,$,(#5682));
+#5695=IFCCARTESIANPOINT((4.,-13.,0.));
+#5696=IFCDIRECTION((0.,0.,1.));
+#5697=IFCDIRECTION((0.,1.,0.));
+#5698=IFCAXIS2PLACEMENT3D(#5695,#5696,#5697);
+#5699=IFCLOCALPLACEMENT(#92,#5698);
+#5700=IFCCARTESIANPOINT((-4.,-13.,0.));
+#5701=IFCDIRECTION((0.,0.,1.));
+#5702=IFCDIRECTION((0.,1.,0.));
+#5703=IFCAXIS2PLACEMENT3D(#5700,#5701,#5702);
+#5704=IFCLOCALPLACEMENT(#92,#5703);
 ENDSEC;
 END-ISO-10303-21;