premise: StormRider was a simulator ride at Tokyo DisneySea. It simulated going into a weather storm in a futuristic airplane (a "StormRider") to dissipate the storm. The attraction opened on September 4, 2001, in the Port Discovery land of Tokyo DisneySea. The attraction closed on May 17, 2016 and replaced by a new Finding Nemo/Finding Dory simulator ride called Nemo & Friends SeaRider.
hypothesis: Tokyo DisneySea opened in 1999.
reason: We don't know when Tokyo DisneySea opened, just when this specific attraction opened. It's difficult because the passage contains a similar statement with a different date, so this confuses it.