Question: BomBora is one of how many roller coasters at the amusement park just outside Lagoon-A-Beach?

Context paragraphs:
Mighty Canadian Minebuster: The Mighty Canadian Minebuster (often shortened to just Minebuster) is one of the four roller coasters that debuted with Canada's Wonderland, an amusement park located in Vaughan, Ontario, Canada, in 1981, and is still operational today.  It is one of two wooden roller coasters at the park that are modelled after rides that existed at Coney Island amusement park in Cincinnati, Ohio (specifically, the Shooting Star); Wild Beast is the other.  Minebuster was originally intended to be the centrepiece of the never-built Frontier Canada section of the park.

Roller coaster phobia: Roller coaster phobia is a colloquial and slang term describing an individual's fear of roller coasters.  While roller coasters are the most popular theme park attraction, certain people feel nauseated, afraid, dizzy, or unsafe when riding roller coasters.  In the majority of cases, this fear is related to acrophobia, claustrophobia, or a traumatic event.  Roller coaster phobia can be overcome relatively easily, the best cure being going on the tallest/fastest roller coaster before riding roller coasters of a lesser magnitude.  Roller coaster phobia has been linked to previously experiencing an accident, vertigo, and fear of heights.  In rare cases, riders may be afraid of roller coasters due to a painful ride, tight restraints, being thrown around in the restraints, and excessive g-forces on the body of the rider.

Lagoon (amusement park): Lagoon is a privately owned amusement park in Farmington, Utah, United States, located about seventeen miles (27 km) north of Salt Lake City.  It has ten roller coasters, five of which are unique; "Colossus the Fire Dragon", the last Schwarzkopf Double Looping coaster still in operation in the United States (Laser at Dorney Park closed at the end of the 2008 season and was moved to Germany to become the Teststrecke traveling roller coaster in 2009); Roller Coaster, one of the oldest coasters in the world operating since 1921; Wicked, designed by Lagoon's engineering department and Werner Stengel in cooperation with ride manufacturer Zierer; BomBora, a family coaster designed in-house; and Cannibal, built in-house with one of the world's steepest drops.

Cedar Point: Cedar Point is a 364 acre amusement park located on a Lake Erie peninsula in Sandusky, Ohio.  Opened in 1870, it is the second-oldest operating amusement park in the United States behind Lake Compounce.  Cedar Point is owned and operated by Cedar Fair and is considered the flagship of the amusement park chain.  Known as "America's Roller Coast", the park features a world-record 71 rides, including 16 roller coasters – the second-most in the world behind Six Flags Magic Mountain.  Its newest roller coaster, Valravn, opened in May 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.

Canada's Wonderland: Canada's Wonderland is a 330 acre theme park located in Vaughan, Ontario, a suburb approximately 40 km north of Downtown Toronto.  Opened in 1981 by the Taft Broadcasting Company and The Great-West Life Assurance Company as the first major theme park in Canada, it remains the country's largest.  The park, currently owned by Cedar Fair, has been the most visited seasonal amusement park in North America for several consecutive years.  As a seasonal park, Canada's Wonderland is open daily from May to September, with weekend openings in late April, October and early November.  With sixteen roller coasters, Canada's Wonderland is ranked third in the world by number of roller coasters, after Six Flags Magic Mountain (19 coasters) and Cedar Point (17 coasters).  The 330 acre park includes a 20 acre water park named Splash Works.  The park holds Halloween Haunt, a Halloween-themed event, each fall, as well as special events throughout the season.

Knoebels Amusement Resort: Knoebels Amusement Resort ( ) is a family-owned and operated amusement park, picnic grove, and campground in Elysburg, Pennsylvania.  It is and has been America's largest free-admission park for 90 years of operation.  Opened in 1926, the park has more than 60 rides, three wooden roller coasters, one steel roller coaster, a 1913 carousel, and a haunted house dark ride that was featured on the Discovery Channel.  The park and its rides have won awards from organizations such as "Amusement Today", American Coaster Enthusiasts, and the International Association of Amusement Parks and Attractions.  In 2014, Travel Channel rated Knoebels one of their Top 10 Family Friendly Amusement Parks in the United States.  America's Number One Amusement Park

BomBora (Lagoon): BomBora is a family steel roller coaster currently operating at Lagoon in Farmington, Utah, United States.  It is located just outside Lagoon-A-Beach.  The name of the coaster comes from an indigenous Australian term for "a submerged reef" or "a turbulent area of sea over such a reef".

List of roller coaster rankings: Roller coasters are amusement rides developed for amusement parks and modern theme parks.  During the 16th and 17th centuries, rides consisting of wooden sleds that took riders down large slides made from ice were popular in Russia.  The first roller coasters, where the train was attached to a wooden track, first appeared in France in the early 1800s.  Although wooden roller coasters are still being produced, steel roller coasters are more common and can be found on every continent except Antarctica.

Backety-Back Scenic Railway: Backety-Back Scenic Railway was a wooden roller coaster located at Crystal Beach, Ontario.  The ride opened to the public in 1909 and operated until 1926.  The Backety-Back Scenic Railway was notable for a backward-traveling innovation which would be adopted many years later in more modern steel roller coasters.  It was also one of the earliest shuttle roller coasters to be built, as well as being the second roller coaster to be built in the Crystal Beach amusement park.  The coaster has been cited as a particularly beautiful example of roller coaster architecture.

Supporting paragraphs: BomBora (Lagoon) Lagoon (amusement park)
Answer: ten