Create a federated SPARQL query that returns all books by San Franciscan authors in the Harvard Library. You can execute (federated) SPARQL queries live in the browser via http://query.linkeddatafragments.org/.
You should use the following data sources:
| Data source | Data | Link |
|---|---|---|
| DBpedia | Authors and their birth places | http://fragments.dbpedia.org/2016-04/en |
| Virtual International Authority File | Links same authors across multiple data sources | http://data.linkeddatafragments.org/viaf |
| Harvard Library | Books and their authors at Harvard Library | http://data.linkeddatafragments.org/harvard |
You should use the following vocabularies:
| Name | Prefix | Url | Interesting properties |
|---|---|---|---|
| DBpedia | dbpedia-owl |
http://dbpedia.org/ontology/ | dbpedia-owl:birthPlace |
| RDF Schema | rdfs |
http://www.w3.org/2000/01/rdf-schema# | rdfs:label |
| Schema.org | schema |
http://schema.org/ | schema:sameAs, schema:name |
| FOAF | foaf |
http://xmlns.com/foaf/0.1/ | foaf:name |
| Dublin Core Terms | dc |
http://purl.org/dc/terms/ | dc:contributor, dc:title |