Table:
text: The Gravity Group
The Gravity Group Coasters
The Gravity Group Coasters
Name_ Park Length_ft Height_ft Speed_mph Opened Status_
Boardwalk Bullet Kemah Boardwalk 3236 96 51 August 31, 2007 Operating
Dauling Dragon Happy Valley , Wuhan, Hubei, China 3914 105 unknown 2012 Operating
Hades 360 Mt. Olympus 4726 136 70 May 14, 2005 Operating
Ravine Flyer II Waldameer 2900 120 57 May 17, 2008 Operating
Twister Gröna Lund 1574 50 37.9 2011 Operating
The Voyage Holiday World 6442 163 67 May 6, 2006 Operating
Wooden Coaster - Fireball Happy Valley , Shenzhen 3819 108 56 July 28, 2009 Operating
Wooden Warrior Quassy Amusement Park 1200 35 35 2011 Operating
Zippin Pippin Bay Beach Amusement Park 2865 70 40 2011 Operating

Question: How many parks are named mt. Olympus under the Gravity Group?

Question: How fast is The Gravity Group's 50 meter high roller coaster?

Question: How long is the roller coaster with the unknown speed for The Gravity Group?

Question: How long is the roller coaster on the Kemah Boardwalk for The Gravity Group?

Question: Which park is Boardwalk Bullet in the middle of the Gravity Group?

Question: How many parks is Zippin Pippin in The Gravity Group located in?