@prefix this: . @prefix sub: . @prefix np: . @prefix grlc: . @prefix dct: . @prefix nt: . @prefix npx: . @prefix xsd: . @prefix rdfs: . @prefix orcid: . @prefix prov: . @prefix foaf: . sub:Head { this: a np:Nanopublication; np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo . } sub:assertion { sub:get-presentation-details a grlc:grlc-query; dct:description "Returns the details of a presentation or poster, laid out for reading rather than as a raw property dump: authors (and speakers) are resolved to names and joined into a single row, and the start and end date/time are combined into one 'When' value - a plain date and time range when both fall on the same day, both dates spelled out when they do not. Legacy predicates (dct:date, dct:creator, and the http://schema.org/ forms) are recognised alongside the current ones, and any predicate not recognised is still listed, so nothing in the assertion is hidden. Known properties are shown first."; dct:license ; rdfs:label "Get presentation details"; grlc:endpoint ; grlc:sparql """prefix rdfs: prefix rdf: prefix dct: prefix np: prefix npa: prefix npx: prefix wd: prefix schema: prefix pav: prefix foaf: prefix gen: select ?property ?property_label ?value ?value_label where { bind(?_resourceNp_iri as ?np) graph npa:graph { ?np npa:hasValidSignatureForPublicKeyHash ?pubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . } ?np np:hasAssertion ?a . ?np npx:introduces ?_resource_iri . } { graph ?a { ?_resource_iri rdf:type ?value } bind(0 as ?sort) bind(rdf:type as ?property) bind(\"Type\" as ?property_label) bind(if(?value = wd:Q604733, \"Presentation\", if(?value = gen:PosterPresentation, \"Poster presentation\", \"\")) as ?value_label) } union { graph ?a { ?_resource_iri rdfs:label ?value } bind(1 as ?sort) bind(rdfs:label as ?property) bind(\"Title\" as ?property_label) } union { select ?sort ?property ?property_label (group_concat(distinct ?who ; separator=\", \") as ?value) where { graph npa:graph { ?_resourceNp_iri np:hasAssertion ?spa ; np:hasPublicationInfo ?sppi . } graph ?spa { ?_resource_iri wd:P823 ?person } optional { graph ?sppi { ?person foaf:name ?pname } } optional { graph ?spa { ?person rdfs:label ?plabel } } bind(coalesce(?pname, ?plabel, str(?person)) as ?who) bind(2 as ?sort) bind(wd:P823 as ?property) bind(\"Speaker\" as ?property_label) } group by ?sort ?property ?property_label } union { select ?sort ?property ?property_label (group_concat(distinct ?who ; separator=\", \") as ?value) where { graph npa:graph { ?_resourceNp_iri np:hasAssertion ?aua ; np:hasPublicationInfo ?aupi . } values ?authorPred { pav:authoredBy dct:creator } graph ?aua { ?_resource_iri ?authorPred ?person } optional { graph ?aupi { ?person foaf:name ?pname } } optional { graph ?aua { ?person rdfs:label ?plabel } } bind(coalesce(?pname, ?plabel, str(?person)) as ?who) bind(3 as ?sort) bind(pav:authoredBy as ?property) bind(\"Authors\" as ?property_label) } group by ?sort ?property ?property_label } union { values ?startPred { schema:startDate dct:date } graph ?a { ?_resource_iri ?startPred ?s } optional { values ?endPred { schema:endDate } graph ?a { ?_resource_iri ?endPred ?e } } bind(4 as ?sort) bind(?startPred as ?property) bind(\"When\" as ?property_label) bind(\"January February March April May June July August SeptemberOctober November December \" as ?mtab) bind(replace(substr(?mtab, (month(?s) - 1) * 9 + 1, 9), \" +$\", \"\") as ?smon) bind(concat(str(day(?s)), \" \", ?smon, \" \", str(year(?s))) as ?sdate) bind(if(contains(str(?s), \"T\"), substr(str(?s), 12, 5), \"\") as ?stime) bind(if(?stime = \"\", ?sdate, concat(?sdate, \", \", ?stime)) as ?sfull) bind(if(bound(?e), replace(substr(?mtab, (month(?e) - 1) * 9 + 1, 9), \" +$\", \"\"), \"\") as ?emon) bind(if(bound(?e), concat(str(day(?e)), \" \", ?emon, \" \", str(year(?e))), \"\") as ?edate) bind(if(bound(?e), if(contains(str(?e), \"T\"), substr(str(?e), 12, 5), \"\"), \"\") as ?etime) bind(if(bound(?e), if(?etime = \"\", ?edate, concat(?edate, \", \", ?etime)), \"\") as ?efull) bind(if(!bound(?e), ?sfull, if(?sfull = ?efull, ?sfull, if(?sdate = ?edate, if(?stime = \"\" || ?etime = \"\", ?sdate, concat(?sdate, \", \", ?stime, \"–\", ?etime)), concat(?sfull, \" – \", ?efull)))) as ?value) } union { values ?locPred { schema:location } graph ?a { ?_resource_iri ?locPred ?value } bind(5 as ?sort) bind(?locPred as ?property) bind(\"Room\" as ?property_label) optional { graph ?a { ?value rdfs:label ?value_label } } } union { graph ?a { ?_resource_iri dct:isPartOf ?value } bind(6 as ?sort) bind(dct:isPartOf as ?property) bind(\"Part of\" as ?property_label) optional { graph ?a { ?value rdfs:label ?value_label } } } union { graph ?a { ?_resource_iri dct:description ?value } bind(7 as ?sort) bind(dct:description as ?property) bind(\"Description\" as ?property_label) } union { values ?aboutPred { schema:about } graph ?a { ?_resource_iri ?aboutPred ?value } bind(8 as ?sort) bind(?aboutPred as ?property) bind(\"Topic\" as ?property_label) optional { graph ?a { ?value rdfs:label ?value_label } } } union { graph ?a { ?_resource_iri rdfs:seeAlso ?value } bind(9 as ?sort) bind(rdfs:seeAlso as ?property) bind(\"Link\" as ?property_label) } union { graph ?a { ?_resource_iri ?pred ?value } filter(?pred not in (rdf:type, rdfs:label, rdfs:seeAlso, wd:P823, pav:authoredBy, dct:creator, dct:date, dct:isPartOf, dct:description, schema:startDate, schema:endDate, schema:location, schema:about, , , , )) bind(99 as ?sort) bind(?pred as ?property) bind(str(?pred) as ?property_label) optional { graph ?a { ?value rdfs:label ?value_label } } } } order by ?sort ?property ?value""" . } sub:provenance { sub:assertion prov:wasAttributedTo orcid:0000-0002-1267-0234 . } sub:pubinfo { orcid:0000-0002-1267-0234 foaf:name "Tobias Kuhn" . this: dct:created "2026-09-07T08:06:12Z"^^xsd:dateTime; dct:creator orcid:0000-0002-1267-0234; dct:license ; npx:embeds sub:get-presentation-details; npx:supersedes ; rdfs:label "Get presentation details"; nt:wasCreatedFromProvenanceTemplate ; nt:wasCreatedFromPubinfoTemplate , , , ; nt:wasCreatedFromTemplate . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwUtewGCpT5vIfXYE1bmf/Uqu1ojqnWdYxv+ySO80ul8Gu7m8KoyPAwuvaPj0lvPtHrg000qMmkxzKhYknEjq8v7EerxZNYp5B3/3+5ZpuWOYAs78UnQVjbHSmDdmryr4D4VvvNIiUmd0yxci47dTFUj4DvfHnGd6hVe5+goqdcwIDAQAB"; npx:hasSignature "Hj9yhEozXlt5yKJBsk15q0ixstoJXuerZBEhzm4DKptmiktmLlvlX4G7hm310HMkP74gsqm77GX4ylPbttp4Q+zvjEtrGj6KGjs1UbayfZZBEIVYXqCazy8MptHvcU+vV8lVGwEMg7QAdnPjiPqPjT2a6On3XRX2tkD1g9Kq4nM="; npx:hasSignatureTarget this:; npx:signedBy orcid:0000-0002-1267-0234 . }