Question: Eejanaika is a steel 4th Dimension roller coaster at an amusement park that was opened on March 2nd of what year?
Related documents: [0]  [DOC] Eejanaika (ええじゃないか ) is a steel 4th Dimension roller coaster at Fuji-Q Highland in Fujiyoshida, Yamanashi, Japan. The ride is the world's second 4th Dimension coaster. Eejanaika is the taller, faster, and longer of the two. [END] 
[1]  [DOC] Fuji-Q Highland (富士急ハイランド , Fujikyū Hairando ) is an amusement park in Fujiyoshida, Yamanashi, Japan. it was opened on 2 March 1968. [END] 
Answer: 
1968
1968