King Street Station
It is served by Amtrak's "Cascades" , "Coast Starlight" , and "Empire Builder" , as well as Sounder commuter trains run by Sound Transit . 
<triplet> Amtrak <subj> Cascades <obj> item operated <subj> Coast Starlight <obj> item operated <subj> Empire Builder <obj> item operated <triplet> Cascades <subj> Amtrak <obj> operator <triplet> Coast Starlight <subj> Amtrak <obj> operator <triplet> Empire Builder <subj> Amtrak <obj> operator