Question: What country were both Chonghaejin Marine and Sinking of MV Sewol located in?
Sentence (from "Chonghaejin Marine"): The "Sewol" capsized in the Maenggol Channel carrying 476 people, mostly secondary school students from Danwon High School; 172 passengers and crew survived, while 304 were drowned or still missing.
Relevant evidence: No