@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; ns2:source "OpenGIS Guide" ; dct:created "2018-03-13" ; dct:modified "2018-04-16" ; ns1:hasProfile , , ; ns3:status ; rdfs:seeAlso ; skos:definition "Descriptive information about features or elements of a database. For a database feature like census tract, attributes might include many demographic facts including total population, average income, and age. In statistical parlance, an attribute is a `variable,` whereas the database feature represents an `observation` of the variable."@en ; skos:prefLabel "attribute data"@en .