Grefsen station
Grefsen station is a railway station at Storo in Oslo , Norway on the Gjøvik Line . 
<triplet> Grefsen station <subj> railway station <obj> instance of <subj> Norway <obj> country <triplet> Storo <subj> Norway <obj> country <triplet> Oslo <subj> Norway <obj> country <triplet> Norway <subj> Oslo <obj> contains administrative territorial entity <triplet> Gjøvik Line <subj> Norway <obj> country