Submissions for Nomisma
Description
Nomisma knowledge graph is a Linked Open Data (LOD) resource developed by the American Numismatic Society (ANS) in collaboration with an international community of scholars. It provides stable URIs and a formal RDF ontology for numismatic concepts—such as coins, typologies, mints, and hoards—enabling structured representation of numismatic information and interlinking with external datasets. This knowledge graph supports semantic integration, SPARQL querying, and bulk downloads in multiple RDF serializations, facilitating research, interoperability, and reuse of numismatic data across digital projects and collections.
2 of 2 submissions
#109
Natural Language Question
Who are the Roman emperors contained in the knowledge graph? List them all by their English name/label.
SPARQL Query
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX nm: <http://nomisma.org/id/>
PREFIX nmo: <http://nomisma.org/ontology#>
PREFIX org: <http://www.w3.org/ns/org#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
SELECT ?uri ?label WHERE {
?uri a foaf:Person ;
skos:prefLabel ?label ;
org:hasMembership ?membership .
?membership org:role nm:roman_emperor .
FILTER(langMatches(lang(?label), "EN"))
}
#110
Natural Language Question
What is the average weight of Augustan Denarii?
Source
SPARQL Query
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX nm: <http://nomisma.org/id/>
PREFIX nmo: <http://nomisma.org/ontology#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT (AVG(xsd:decimal(?weight)) AS ?average) WHERE {
?type nmo:hasAuthority nm:augustus ;
nmo:hasDenomination nm:denarius ;
dcterms:source nm:ric.
?coin nmo:hasTypeSeriesItem ?type .
?coin nmo:hasWeight ?weight
}
