@prefix this: . @prefix sub: . @prefix np: . @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-places-in-africa a ; dct:description "This query returns all places (geosparql:Feature) located in Africa."; dct:license ; rdfs:label "Get places in Africa"; ; """prefix np: prefix npa: prefix npx: prefix dct: prefix geosparql: prefix rdfs: prefix geof: select distinct ?np ?location ?locationLabel ?wkt where { graph ?assertion { ?paper dct:spatial ?location . ?location a geosparql:Feature . ?location rdfs:label ?locationLabel . ?location geosparql:hasGeometry ?geometry . ?geometry geosparql:asWKT ?wkt . # Find locations that intersect with East Africa bounding box filter(geof:sfIntersects(strdt(?wkt, geosparql:wktLiteral), \"POLYGON((28 -12, 40 -12, 40 5, 28 5, 28 -12))\"^^geosparql:wktLiteral)) } graph npa:graph { ?np np:hasAssertion ?assertion . ?np npa:hasValidSignatureForPublicKey ?pubkey . filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?pubkey . } } }""" . } 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 "2025-08-22T11:53:32.209Z"^^xsd:dateTime; dct:creator orcid:0000-0002-1267-0234; dct:license ; npx:embeds sub:get-places-in-africa; npx:wasCreatedAt ; nt:wasCreatedFromProvenanceTemplate ; nt:wasCreatedFromPubinfoTemplate , ; nt:wasCreatedFromTemplate . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD4Wj537OijfOWVtsHMznuXKISqBhtGDQZfdO6pbb4hg9EHMcUFGTLbWaPrP783PHv8HMAAPjvEkHLaOHMIknqhaIa5236lfBO3r+ljVdYBElBcLvROmwG+ZGtmPNZf7lMhI15xf5TfoaSa84AFRd5J2EXekK6PhaFQhRm1IpSYtwIDAQAB"; npx:hasSignature "RzSn2h9jqSfPAEymPcRewnjV67FYiUK5gS2z6HVBgodOmJ6N+53p1z+YTzX673ym+s0ZtArDeZFGRJ7GoOFY0lWOoLdcy4wMrfixCP3E0/gknvvtUjGMSIFNrXfT/nnYRRBcly39g8xqO4wmSdDqq/rBM99cU/s5+qdtyuUoYAo="; npx:hasSignatureTarget this:; npx:signedBy orcid:0000-0002-1267-0234 . }