I need to get the co-ordinates of some particular places from DbPedia. For the same I am using following snippet:
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT * WHERE {
?x foaf:name 'Mumbai'.
?x dbo:Place 'Mumbai'.
?x geo:lat ?lat .
?x geo:long ?long .
}
On running at http://dbpedia.org/sparql, it returns an empty page. I think I didn't put the name of place in the correct way. Can anyone help me to find the issue
Have a look at the N3/TTL serialization of the data for Mumbai. Note that the foaf:name value has a language tag: foaf:name "Mumbai"@en. You need to use "Mumbai"@en, with the language tag, in the query. Additionally, doing dbo:Place 'Mumbai' doesn't make any sense. You might instead want to ask for things which are dbpedia-owl:Places. You'd end up with a query like:
select * {
?mumbai a dbpedia-owl:Place ;
foaf:name "Mumbai"@en ;
geo:lat ?lat ;
geo:long ?long
}