PeP - point to an empty point POINT(10 10) POINT EMPTY 0.0 PP - point to point POINT(10 10) POINT (10 0) 10.0 LL - line to line LINESTRING (0 0, 0 10) LINESTRING (10 0, 10 10) 10.0 PA - point inside polygon POINT (240 160) POLYGON ((100 260, 340 180, 100 60, 180 160, 100 260)) 0.0 LL - crossing linestrings LINESTRING (40 300, 280 220, 60 160, 140 60) LINESTRING (140 360, 260 280, 240 120, 120 160) 0.0 AA - overlapping polygons POLYGON ((60 260, 260 180, 100 60, 60 160, 60 260)) POLYGON ((220 280, 120 160, 300 60, 360 220, 220 280)) 0.0 AA - disjoint polygons POLYGON ((100 320, 60 120, 240 180, 200 260, 100 320)) POLYGON ((420 320, 280 260, 400 100, 420 320)) 71.55417527999327 mAmA - overlapping multipolygons MULTIPOLYGON (((40 240, 160 320, 40 380, 40 240)), ((100 240, 240 60, 40 40, 100 240))) MULTIPOLYGON (((220 280, 120 160, 300 60, 360 220, 220 280)), ((240 380, 280 300, 420 340, 240 380))) 0.0