@prefix rdf: . @prefix owl: . @prefix xsd: . @prefix rdfs: . a ; rdfs:isDefinedBy ; rdfs:label "Metres per year"@en ; "A rate of change of SI standard unit length over a period of an average calendar year (365.25 days)."@en ; , , , ; 0.0000000316880878140289 ; 3.16880878140289E-8 ; ; , ; "m/yr" ; "m.a-1"^^ .