LA - line and sliver intersecting, dimensional collapse POLYGON( (95 9, 81 414, 87 414, 95 9)) LINESTRING(93 13, 96 13) LINESTRING(95 9, 81 414, 87 414, 95 9) POLYGON( (95 9, 81 414, 87 414, 95 9)) POINT(95 13) GEOMETRYCOLLECTION( LINESTRING(95 9, 95 13), POLYGON( (95 13, 81 414, 87 414, 95 13)), LINESTRING(93 13, 95 13), LINESTRING(95 13, 96 13)) GEOMETRYCOLLECTION( LINESTRING(95 9, 95 13), POLYGON( (95 13, 81 414, 87 414, 95 13))) GEOMETRYCOLLECTION( LINESTRING(95 9, 95 13), POLYGON( (95 13, 81 414, 87 414, 95 13)), LINESTRING(93 13, 95 13), LINESTRING(95 13, 96 13))