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Geospatial query answering in Stardog
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| prefix geof: <http://www.opengis.net/def/function/geosparql/> | |
| prefix geo: <http://www.opengis.net/ont/geosparql#> | |
| //get locations within 2km of Complexible HQ | |
| select ?name where { | |
| ?loc rdfs:label ?name . | |
| ?loc geo:hasGeometry ?feature . | |
| ?hq geo:hasGeometry ?hqGeo ; rdfs:label "Complexible Headquarters" . | |
| ?feature geof:nearby (?hqGeo 2 <http://www.qudt.org/qudt/owl/1.0.0/unit/Instances.html#Kilometer>). | |
| } | |
| // results: `Complexible Headquarters`, `White House`, and `Smithsonian Museum of Natural History` |
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