@prefix dc: . @prefix rdfs: . @prefix cast: . @prefix xsd: . @prefix skos: . dc:contributor rdfs:label "Contributor" . cast:147 dc:created "2010-12-15T16:54:19Z"^^xsd:dateTime ; dc:contributor "dgwr" ; skos:broader cast:146 ; a skos:Concept ; dc:modified "2019-05-09T16:00:18.197+00:00"^^xsd:dateTime ; skos:related cast:177 ; dc:creator "dgwr" ; skos:altLabel "Metrohm pH meter"@en ; skos:prefLabel "Metrohm pH meter and electrode"@en ; skos:definition "A Metrohm pH meter and electrode (model unspecified)"@en . dc:modified rdfs:label "Modified" . dc:created rdfs:label "Created" . cast:146 skos:prefLabel "pH meters"@en ; a skos:Concept ; skos:narrower cast:147 . cast:177 skos:prefLabel "electrometric pH determination"@en ; a skos:Concept ; skos:related cast:147 . dc:creator rdfs:label "Creator" .