Question: On what railway does the train service formerly called the "Adelaide Express" run?
Sentence (from "K7047/7048 Harbin-Mudanjiang Through Train"): Harbin East Railway Station to Mudanjiang Railway Station running 6 hours and 21 minutes, use trips for K7047; Mudanjiang Railway Station to Harbin East Railway Station to run 4 hours and 25 minutes, use trips for K7048.
Relevant evidence: No