Get presentations for event
has assertion: assertion
has provenance: provenance
has publication info: pubinfo
type: Nanopublication
created: 2026-08-28T07:25:37Z
creator: Tobias Kuhn
license: https://creativecommons.org/licenses/by/4.0/
embeds: Get presentations for event

Get presentations for event
description: Returns all presentations of the given event, with label, start and end time, location, speaker (with name), and nanopub link, ordered chronologically.
license: LICENSE-2.0
type: grlc-query
sparql: prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> prefix dct: <http://purl.org/dc/terms/> prefix np: <http://www.nanopub.org/nschema#> prefix npa: <http://purl.org/nanopub/admin/> prefix npx: <http://purl.org/nanopub/x/> prefix wd: <http://www.wikidata.org/entity/> prefix foaf: <http://xmlns.com/foaf/0.1/> prefix nt: <https://w3id.org/np/o/ntemplate/> prefix schema: <https://schema.org/> prefix schemaold: <http://schema.org/> select ?presentation ?presentation_label ?start ?end ?location ?speaker ?speaker_label ?np ("^" as ?np_label) where { graph npa:graph { ?np npa:hasValidSignatureForPublicKeyHash ?pubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . } filter not exists { ?np npx:hasNanopubType npx:ExampleNanopub . } ?np np:hasAssertion ?a . ?np np:hasPublicationInfo ?pi . ?np npx:introduces ?presentation . } values ?_event_multi_iri {} graph ?a { ?presentation a wd:Q604733 . ?presentation dct:isPartOf ?_event_multi_iri . } optional { graph ?a { ?presentation rdfs:label ?presentation_label } } optional { graph ?a { ?presentation schema:startDate ?startNew } } optional { graph ?a { ?presentation schemaold:startDate ?startOld } } optional { graph ?a { ?presentation dct:date ?startLegacy } } optional { graph ?a { ?presentation schema:endDate ?endNew } } optional { graph ?a { ?presentation schemaold:endDate ?endOld } } optional { graph ?a { ?presentation schema:location ?locNew } } optional { graph ?a { ?presentation schemaold:location ?locOld } } optional { graph ?a { ?presentation wd:P823 ?speaker } } optional { graph ?pi { ?speaker foaf:name ?speakerName } } optional { graph ?pi { ?speaker nt:hasLabelFromApi ?speakerApiName } } bind(coalesce(?startNew, ?startOld, ?startLegacy) as ?start) bind(coalesce(?endNew, ?endOld) as ?end) bind(coalesce(?locNew, ?locOld) as ?location) bind(coalesce(?speakerName, ?speakerApiName) as ?speaker_label) } order by coalesce(str(?start), "9999") ?presentation_label

sig
has algorithm: RSA
signed by: Tobias Kuhn