{
  "name": "relate",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Tests the Dimensional Extended 9 Intersection Model (DE-9IM) representation of the relationship between two geometries.",
  "variants": [
  { "variant": "Relationship variant",
      "variant_description": "Returns the Dimensional Extended 9 Intersection Model (DE-9IM) representation of the relationship between two geometries.",
      "arguments": [
    	{"arg":"geometry","description":"a geometry"},
    	{"arg":"geometry","description":"a geometry"}
      ],
      "examples": [ { "expression":"relate( geom_from_wkt( 'LINESTRING(40 40,120 120)' ), geom_from_wkt( 'LINESTRING(40 40,60 120)' ) )", "returns":"'FF1F00102'" } ] },
      {
      "variant": "Pattern match variant",
      "variant_description": "Tests whether the DE-9IM relationship between two geometries matches a specified pattern.",
      "arguments": [
	    {"arg":"geometry","description":"a geometry"},
     	{"arg":"geometry","description":"a geometry"},
     	{"arg":"pattern","description":"DE-9IM pattern to match"}
      ],
      "examples": [ { "expression":"relate( geom_from_wkt( 'LINESTRING(40 40,120 120)' ), geom_from_wkt( 'LINESTRING(40 40,60 120)' ), '**1F001**' )", "returns":true}]
  }]
}