Question: What are the seats directly attached to on the Cobra roller coaster at the Tivoli Friheden amusement park? 

Context paragraphs:
Lake Compounce: Lake Compounce is an amusement park located in Bristol and Southington, Connecticut; the lake itself lies completely in Southington.  Opened in 1846, it is the oldest continuously-operating amusement park in the United States.  The amusement park covers 332 acres (1.3 km²) of land, and also has a beach and a waterpark which can be used by guests for no extra charge.  The park was acquired from Kennywood Entertainment Company by Palace Entertainment, the U.S. subsidiary of Parques Reunidos.  In addition to the title for oldest consecutively run amusement park in the United States, it also has 14th oldest wooden roller coaster in the world, Wildcat.  Its other, newer wooden roller coaster, Boulder Dash, has won the Golden Ticket Award for the #1 Wooden Coaster in the World for 5 years, and held that record from 2013 to 2016.

List of Kings Island attractions: Kings Island is a 364 acre theme park located in Mason, Ohio, 24 mi northeast of Cincinnati.  Since the opening of the amusement park in 1972, at least one attraction has been added every year except 1978, 1980, 1983, and 2008.  The park is known to have attractions such as Flight of Fear which was the world's first linear induction motor launched roller coaster, and The Beast which has held the record for the world's longest wooden roller coaster since its opening in 1979.  Also, The Beast continues to be ranked as one of the best wooden roller coasters in the world by industry polls.  Kings Island's newest attraction is Mystic Timbers, a wooden roller coaster manufactured by Great Coasters International.  With this addition, Kings Island claimed the record for most wooden roller coaster track of any amusement park in the world, and tied the record for most wooden roller coasters, with five.

Griffon (roller coaster): Griffon is a steel Dive Coaster roller coaster located at the Busch Gardens Williamsburg amusement park in James City County, Virginia, United States.  Designed by Bolliger & Mabillard, it is 205 ft high, and is the second-fastest (71 mph ) Dive Coaster built.  The roller coaster features two Immelmann loops, a splashdown, two vertical drops and was the first of its kind to use floorless trains.  Griffon was announced to the public on August 23, 2006 and opened on May 18, 2007 to positive reviews by both newspapers and enthusiasts.  In 2007, "Amusement Today"' s annual Golden Ticket Awards voted it the third-best new steel roller coaster of that year and the 27th-best steel roller coaster.  It was voted the 33rd-best steel roller coaster in 2013.

Tivoli Friheden: Tivoli Friheden is an amusement park located in Aarhus, Denmark.  The park was visited by more than 365,000 visitors in 2009, and the figure is rising.  The park is situated about 2 km to the south of the city centre.  It has several themed sections with different types of attractions.  There are more than 40 attractions.

Millennium Force: Millennium Force is a steel roller coaster built by Intamin at Cedar Point amusement park in Sandusky, Ohio, United States.  It was the fourteenth roller coaster to be built at the park since Blue Streak opened in 1964.  Upon completion in 2000, Millennium Force broke six world records and was the world's first Giga Coaster, a roller coaster that exceeds 300 ft in height and completes a full circuit.  It was briefly the tallest and fastest in the world until Steel Dragon 2000 opened later the same year.  The ride is also the third-longest roller coaster in North America after The Beast at Kings Island and Fury 325 at Carowinds.  It was the first roller coaster to use a cable lift system rather than a traditional chain lift.  The coaster has a 310 ft , 45-degree lift hill with a 300 ft drop and features two tunnels, three overbanked turns, and four hills.  It has a top speed of 93 mph .

Inverted roller coaster: An inverted roller coaster is a roller coaster in which the train runs under the track with the seats directly attached to the wheel carriage.  This latter attribute is what sets it apart from the older suspended coaster, which runs under the track, but "swings" via a pivoting bar attached to the wheel carriage.  The coaster type's inverted orientation distinguishes it from a traditional roller coaster, where the passengers' legs rather than arms are exposed.

Temple of the Night Hawk: Temple of the Night Hawk is an enclosed roller coaster located at Phantasialand.  Founded in 1988 after 18 months of construction, the ride was originally called ‘'Space Center'’.  The ride led passengers past models of rockets and emulated asteroids and the darkened hall was dimly lit with thousands of tiny spots of light to resemble stars.  Due to the construction of the neighbouring Wurze Town in 2001, the roller coaster was redeveloped with a fantasy jungle theme and was renamed as the "Temple of the Night Hawk".  The roller coaster is now completely dark.  Until 2006 there were some green moving lights and strobe lights in the first lifthill, still present today, but not operational.  In 2008 the Lights on the coaster trains were turned off or broke down and have never been repaired since then.  Till 2010 there was a green laser projection with the outlines of a flying hawk and until June 2012, there were some red strobe-lights at the final brakerun.  In 2011, the park installed new strobe lights in the first lifthill, which broke down after about two months, and were never repaired since then.  The ride has four trains and one spare train for repairs each with seven cars.  Each car has two rows of seats each holding two people.  During the four-minute ride time the trains are lifted by three lift hill chains, 1.174 metres of track.  The roller coaster is therefore one of the longest indoor roller coasters in the World, slightly beaten by "Mindbender" in Galaxyland Amusement Park, Canada.  The hall in which the track is located is around 120,000m³ in size and rests on 180 concrete pillars which are 12 metres deep in the ground.  In the basement of the hall is the ‘'Hollywood Tour’' darkride.  The total investment for the ride was around 15 million DM.

Suspended Family Coaster: A Suspended Family Coaster is a steel inverted roller coaster built by Vekoma designed for families with no inversions.  Just like all inverted roller coasters the train runs under the track with the seats directly attached to the wheel carriage.  This latter attribute is what sets it apart from the older suspended swinging coaster, which runs under the track, but "swings" via a pivoting bar attached to the wheel carriage.

Cobra (Tivoli Friheden): Cobra is a steel inverted roller coaster at the Tivoli Friheden amusement park in Denmark.

Tatsu: Tatsu is a steel flying roller coaster designed by Bolliger & Mabillard at the Six Flags Magic Mountain amusement park located in Valencia, California, United States.  Announced on November 17, 2005, the roller coaster opened to the public on May 13, 2006 as the park's seventeenth roller coaster.  Tatsu reaches a height of 170 ft and speeds up to 62 mph .  The ride's name means "Flying Beast" in Japanese.  The roller coaster is also the world's tallest and fastest flying coaster; is the only flying roller coaster to feature a zero-gravity roll; and has the world's highest pretzel loop.  It was the world's longest flying coaster until The Flying Dinosaur surpassed it.

Supporting paragraphs: Cobra (Tivoli Friheden) Inverted roller coaster
Answer: the wheel carriage