skosConcept prefLabel altLabel
http://data.europa.eu/949/concepts/gsmr-number-active-mobiles/rinf/10 
"0"
http://data.europa.eu/949/concepts/gsmr-number-active-mobiles/rinf/20 
"1"
http://data.europa.eu/949/concepts/gsmr-number-active-mobiles/rinf/30 
"2"