Get distinct number of mints associated with each monogram in SCO

distinct-mints-for-monogram.sparql

PREFIX crm: <http://www.cidoc-crm.org/cidoc-crm/>
PREFIX dcmitype: <http://purl.org/dc/dcmitype/>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>
PREFIX nm: <http://nomisma.org/id/>
PREFIX nmo: <http://nomisma.org/ontology#>
PREFIX org: <http://www.w3.org/ns/org#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

SELECT DISTINCT ?symbol (count(DISTINCT ?mint) as ?count)   WHERE {
  ?type a nmo:TypeSeriesItem ;
          dcterms:source nm:seleucid_coins ;
          nmo:hasObverse/nmo:hasControlmark|nmo:hasReverse/nmo:hasControlmark ?symbol ;
          nmo:hasMint ?mint.
  ?mint a nmo:Mint .
  ?symbol a nmo:Monogram .
  
} GROUP BY ?symbol LIMIT 100