. . . . "This query returns PICO questions based on a search query on its population field" . . . "Get PICO question by population query" . . "prefix rdfs: \r\nprefix dct: \r\nprefix np: \r\nprefix npa: \r\nprefix npx: \r\nprefix pico: \r\n\r\nselect ?question ?populationDescription ?np ?creator ?date where {\r\n graph npa:graph {\r\n ?np npa:hasValidSignatureForPublicKeyHash ?pubkey .\r\n filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . }\r\n ?np dct:created ?date .\r\n ?np np:hasAssertion ?a .\r\n ?np npx:introduces ?question .\r\n ?np npx:signedBy ?creator .\r\n optional { ?np rdfs:label ?label }\r\n }\r\n graph ?a {\r\n ?question pico:population ?population .\r\n ?population dct:description ?populationDescription .\r\n }\r\n filter(contains(?populationDescription, ?_populationQuery))\r\n}" . . "Tobias Kuhn" . "2025-11-18T08:22:18.674Z"^^ . . . . . . . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD4Wj537OijfOWVtsHMznuXKISqBhtGDQZfdO6pbb4hg9EHMcUFGTLbWaPrP783PHv8HMAAPjvEkHLaOHMIknqhaIa5236lfBO3r+ljVdYBElBcLvROmwG+ZGtmPNZf7lMhI15xf5TfoaSa84AFRd5J2EXekK6PhaFQhRm1IpSYtwIDAQAB" . "fMDBNkFLnNy0wqzuSo8OylW3YV5p0aGh3pqRhgVXU3yca2+XE1LjeB6HBVInnIMiaUNx8APY/5Xn959wPnpSyPDBO/MsFvInR8hpBu+NMeROt30frxBXrczSQ2OCVcwpUvB3aN+DeXEieWLz59WBFiEzYzB22xHQUtWZxhEA4SM=" . . .