Question: In 2001, Six Flags bought the theme park that was adjacent to Six Flags Ohio. What year did this originally open?
Sentence (from "Roar (roller coaster)"): In 2015, Discovery Kingdom announced the retirement of Roar at its theme park, but the park later revealed that it was being renovated and transformed into The Joker with I-Box track technology from Rocky Mountain Construction.
Relevant evidence: No