skosConcept prefLabel altLabel
http://data.europa.eu/949/concepts/contact-line-systems/rinf/10
"Overhead contact line (OCL)"
http://data.europa.eu/949/concepts/contact-line-systems/rinf/20
"Third Rail"
http://data.europa.eu/949/concepts/contact-line-systems/rinf/30
"Fourth Rail"
http://data.europa.eu/949/concepts/contact-line-systems/rinf/40
"Not electrified"