以前のOS Linked Dataについての記事．
郵便番号EC2A 4JEのデータを見ると，その郵便番号がある行政区画へのリンクがあります．
Ward: Haggerstonを見てみると，行政区画についてのデータとその境界線の表示をしてくれます．
% curl -LH 'Accept: text/turtle' http://data.ordnancesurvey.co.uk/id/7000000000011110
.......
<http://data.ordnancesurvey.co.uk/id/7000000000011110>
a <http://data.ordnancesurvey.co.uk/ontology/admingeo/LondonBoroughWard> ;
rdfs:label "Haggerston" ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/gssCode>
"E05000239" ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/hasAreaCode>
"LBW" ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/hasUnitID>
"11110" ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/inCounty>
<http://data.ordnancesurvey.co.uk/id/7000000000041441> ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/inDistrict>
<http://data.ordnancesurvey.co.uk/id/7000000000011199> ;
<http://data.ordnancesurvey.co.uk/ontology/admingeo/inEuropeanRegion>
<http://data.ordnancesurvey.co.uk/id/7000000000041428> ;
<http://data.ordnancesurvey.co.uk/ontology/geometry/extent>
<http://data.ordnancesurvey.co.uk/id/geometry/11110-241> ;
<http://data.ordnancesurvey.co.uk/ontology/spatialrelations/easting>
533455.5 ;
<http://data.ordnancesurvey.co.uk/ontology/spatialrelations/northing>
"182927"^^<http://www.w3.org/2001/XMLSchema#decimal> ;
<http://data.ordnancesurvey.co.uk/ontology/spatialrelations/touches>
<http://data.ordnancesurvey.co.uk/id/7000000000011193> , <http://data.ordnancesurvey.co.uk/id/7000000000041879> , <http://data.ordnancesurvey.co.uk/id/7000000000010856> , <http://data.ordnancesurvey.co.uk/id/7000000000010854> , <http://data.ordnancesurvey.co.uk/id/7000000000010855> , <http://data.ordnancesurvey.co.uk/id/7000000000011112> , <http://data.ordnancesurvey.co.uk/id/7000000000011196> , <http://data.ordnancesurvey.co.uk/id/7000000000011111> ;
<http://data.ordnancesurvey.co.uk/ontology/spatialrelations/within>
<http://data.ordnancesurvey.co.uk/id/7000000000011199> ;
<http://www.georss.org/georss/point>
"51.529489 -0.07749" ;
<http://www.w3.org/2002/07/owl#sameAs>
<http://statistics.data.gov.uk/id/statistical-geography/E05000239> ;
<http://www.w3.org/2003/01/geo/wgs84_pos#lat>
51.529489 ;
<http://www.w3.org/2003/01/geo/wgs84_pos#long>
-0.07749 ;
<http://www.w3.org/2004/02/skos/core#prefLabel>
"Haggerston" .
データで使われている語彙のURIが長いので以下のprefixで省略して書きます．
@prefix geometry: <http://data.ordnancesurvey.co.uk/ontology/geometry/>
@prefix spatialrelations: <http://data.ordnancesurvey.co.uk/ontology/spatialrelations/>
@prefix admingeo: <http://data.ordnancesurvey.co.uk/ontology/admingeo/>
境界線データはgeometry:extentのhttp://data.ordnancesurvey.co.uk/id/geometry/11110-241に含まれています．GMLが直接埋め込んである形になっています．
% curl -LH 'Accept: text/turtle' http://data.ordnancesurvey.co.uk/id/geometry/11110-241
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://data.ordnancesurvey.co.uk/id/geometry/11110-241>
a <http://data.ordnancesurvey.co.uk/ontology/geometry/AbstractGeometry> ;
<http://data.ordnancesurvey.co.uk/ontology/geometry/asGML>
"<gml:Polygon xmlns:gml=\"http://www.opengis.net/gml\" srsName=\"http://www.opengis.net/def/crs/EPSG/0/27700\"><gml:exterior><gml:LinearRing><gml:posList srsDimension=\"2\">533259.9 183282.5 533263 183333.5 533338.9 183342.6 533438.8 183351.7 533469 183358.5 533470.5 183413 533472.6 183487.2 533475.4 183547.4 533479.4 183742 533478.1 183844.1 533479.6 183921.1 533557.9 183928.4 533667 183934.9 533714.4 183937.9 533735.2 183943.8 533719.7 183956 533700.9 183973.5 533684.8 183989 533663.3 184013.4 533693 184012.1 533723.7 184009.8 533736.6 184009.2 533779.7 184006.5 533807.9 184004.5 533827.5 184002.8 533882.3 183999.2 533882.4 184005.2 533930.4 184003.1 533928.4 183932.1 533925.2 183860.9 533928.2 183828.2 533937.5 183695.1 533942.4 183648.7 534044 183636.2 534094.3 183632.5 534105.3 183632.1 534116.1 183631.6 534164.2 183631.8 534223.2 183630.1 534330.8 183632.6 534431.4 183629.5 534479.5 183624.7 534466.7 183600.3 534458.1 183577.8 534454.7 183565.6 534456.6 183526 534463.6 183481.6 534466.6 183466.6 534477.6 183432.5 534486 183413 534496.6 183388.5 534502.3 183372.8 534472.2 183365 534431.7 183352.2 534313.1 183329.2 534303.3 183359.6 534301.1 183364.2 534286.4 183332.5 534269.8 183279.2 534252.2 183229.3 534234.1 183171.7 534225.6 183140.6 534156.8 183129.2 534109.3 183122.7 534019.3 183113.4 533976.4 183111.8 533933.7 183108 533885.2 183101.7 533857.5 183097.1 533837.3 183091.4 533813.9 183086.7 533778.1 183069.1 533768.9 183064 533753.4 183055 533710.8 183028.4 533692.3 183013.8 533683.8 183005.7 533670.1 182990.9 533651.6 182965.8 533633.1 182923.5 533608.1 182854.9 533597.6 182831.7 533587.2 182813.2 533584.2 182808.4 533560.1 182777.7 533539.3 182749.6 533503 182707.2 533478.3 182683.6 533543.8 182668.6 533541.7 182638 533530.1 182597.5 533523.8 182583.7 533523.8 182571 533524 182557.9 533525.4 182539.7 533532.1 182466.3 533543.3 182350.4 533579.8 182355.2 533590.8 182303.7 533595.6 182273.9 533595.3 182262.5 533593.2 182228.3 533590.5 182212.8 533589.1 182204.9 533587.6 182196.7 533578.1 182158.2 533574.1 182138.8 533568.8 182118.9 533567.3 182113.4 533549.2 182097.4 533530.3 182119.1 533501.9 182107.5 533447.5 182086.9 533426 182076.5 533411.9 182041.6 533410.7 182037.9 533320.2 182053.4 533250.9 182075.9 533230.5 182082.5 533215.8 182024.1 533198.6 181978 533184.6 181948.2 533182.4 181945.4 533167.5 181925.3 533146.8 181897.9 533119.2 181869.8 533078.9 181840.5 532946.1 181894.9 532955.7 181928 532965.8 181968.7 532978.1 182037.3 532989.2 182089.3 532993.7 182136 532998.2 182237.5 532999.2 182259.8 533004.7 182293.3 532983.6 182292.4 532941.1 182294.3 532941.6 182350.2 532918.3 182359 532920.4 182368.1 532929.3 182396.8 532944.9 182436.9 532963.7 182460.8 532942.7 182547.9 532938.5 182560.8 532968.5 182570.5 533030.4 182589.1 533033.1 182616.6 533034.4 182629.4 533033.9 182758.8 533098.2 182759.6 533130.9 182761.2 533172.8 182761.8 533179.8 182763.4 533188.1 182763.8 533220.3 182765.5 533225.7 182770.9 533274.9 182774.5 533279.2 182853.1 533280.3 182885 533279.7 182897.7 533277.3 182923.3 533263.6 182979.3 533261.1 182990.3 533259.6 183009.1 533259.8 183032.7 533261.9 183069.2 533260.6 183164.1 533260.9 183204 533259.9 183282.5</gml:posList></gml:LinearRing></gml:exterior></gml:Polygon>"^^rdf:XMLLiteral ;
<http://data.ordnancesurvey.co.uk/ontology/geometry/hectares> 124.25 .
.......
行政区画には隣接関係と包含関係があります．隣接関係は spatialrelations:touchesというプロパティです．包含関係は郵便番号と同様にspatialrelations:within, spatialrelations:containsプロパティが使われていますが，admingeo:county, admingeo:districtあるいはadmingeo:inCounty, admingeo:inDistrictのように直接の上下以外も明示的に個記述されています．
