Gangneung station
This is because there were many KTX-Sancheon because of the 2018 Winter Olympics in Pyeongchang County . 
<triplet> 2018 Winter Olympics <subj> 2018 <obj> point in time <subj> Pyeongchang County <obj> located in the administrative territorial entity <triplet> Pyeongchang County <subj> 2018 Winter Olympics <obj> significant event