Question: How many separate organizations are there in the organization that presented Elimination Chamber?

Context articles: Elimination Chamber (2011)
Elimination Chamber (2013)
WWE No Way Out
Elimination Chamber (2010)
National Guard of the United States
WWE Elimination Chamber
Elimination Chamber
Elimination Chamber (2015)
Elimination Chamber (2012)
Elimination Chamber (2014)

Elimination Chamber (2011) (also known as No Escape (2011) in Germany) was a professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE) and presented by the National Guard, which took place on February 20, 2011 at the Oracle Arena in Oakland, California.
Elimination Chamber (2013) (also known as No Escape (2013) in Germany) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 It took place on February 17, 2013, at the New Orleans Arena in New Orleans, Louisiana.
 The pay-per-view was the fourth annual Elimination Chamber event.
 This year's event was headlined by The Rock defending the WWE Championship against CM Punk.
No Way Out is a professional wrestling pay-per-view (PPV) event, produced by WWE, a professional wrestling promotion based in Connecticut.
 The event was created in 1998 as an In Your House event in February of that year and in 2000 was made an annual pay-per-view event for WWE.
 After the brand extension, the event was made exclusive to the SmackDown brand in 2004, being produced every February.
 In April 2007, following WrestleMania 23, brand-exclusive pay-per-view events ceased being held, with the last of which being the SmackDown-exclusive No Way Out 2007.
 After the event included two Elimination Chamber matches in 2008 and 2009, No Way Out was replaced by WWE Elimination Chamber the following year.
 The name was revived for the June 2012 pay-per-view event.
Elimination Chamber (2010) (also known as No Way Out (2010) in Germany) was a professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE), which took place on February 21, 2010 at the Scottrade Center in St. Louis, Missouri.
 It was the first event in the Elimination Chamber series.
 Six matches were aired on the broadcast and one dark match occurred prior to the live broadcast.
The National Guard of the United States, part of the reserve components of the United States Armed Forces, is a reserve military force, composed of National Guard military members or units of each state and the territories of Guam, of the Virgin Islands, and of Puerto Rico, as well as of the District of Columbia, for a total of 54 separate organizations.
 All members of the National Guard of the United States are also members of the militia of the United States as defined by  /246 § 246  .
 National Guard units are under the dual control of the state and the federal government.
Elimination Chamber is a professional wrestling pay-per-view (PPV) event, produced by WWE, a professional wrestling promotion based in Connecticut.
 The event was created in 2010, with its inaugural event taking place on February 21, 2010, replacing No Way Out.
 Elimination Chamber is a pay-per-view (PPV) event consisting of a main event and undercard that features championship matches and other various matches.
 The concept of the show was that the two main event matches were contested inside the Elimination Chamber; one of these matches typically featured the WWE Championship being defended, while the other was usually contested for the World Heavyweight Championship (the two titles were unified in December 2013).
 The first Elimination Chamber event took place on February 21, 2010 and aired live on PPV.
 The event's name was selected after WWE allowed fans to provide input via a survey on their official website and was chosen over Heavy Metal, Battle Chamber, Chamber of Conflict, and the original No Way Out name.
 Since its origin, each event has been held in an indoor arena, with all five taking place in the United States.
 In 2015, the event was replaced by Fastlane in the February pay-per-view slot.
 However, the 2015 event was later announced to be streamed exclusively on the WWE Network in the United States on May 31 and was also available on PPV elsewhere.
 WWE also confirmed that the newly vacant WWE Intercontinental Championship was being decided inside the Elimination Chamber.
 The event did not occur in 2016, but returned in 2017 as a SmackDown branded event.
The Elimination Chamber is a professional wrestling elimination-based match and held in the WWE promotion.
 The match was created by Triple H and was introduced by Eric Bischoff in November 2002.
 It features a large chain-linked circular steel structure, which encloses the ring.
 The chamber's floor is platformed over the ringside area which elevates it to ring level.
 Within the chamber are four inner enclosures outside each ring corner.
 While similar in profile and nature to WWE's original large scale steel-structured match, Hell in a Cell, the Elimination Chamber match is strictly a six participant match, wherein two participants begin the match in the ring as the remaining four are held within each inner enclosure and are released into the match at five-minute intervals.
 The objective is to eliminate each opponent from the match via pinfall or submission.
 The winner is the last remaining participant after all others have been eliminated.
 As in the Hell in a Cell match, disqualifications do not apply.
 The original structure was 16 ft high, 36 ft in diameter, weighed over 10 ST , and comprised 2 mi and 6 ST of chain.
 There have been twenty Elimination Chamber matches in WWE since the concept's inception in November 2002.
Elimination Chamber (2015) (known as No Escape (2015) in Germany) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 It took place on May 31, 2015, at the American Bank Center in Corpus Christi, Texas.
 The sixth Elimination Chamber event, it was the first and only to be held in May; previous incarnations had taken place in February.
 Although advertised as being exclusive to the WWE Network, the event ultimately aired via traditional pay-per-view outlets in various territories.
Elimination Chamber (2012) (also known as No Escape (2012) in Germany) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 The third event under the Elimination Chamber chronology, it took place on February 19, 2012 at the Bradley Center in Milwaukee, Wisconsin.
Elimination Chamber (2014) (known as No Escape (2014) in Germany) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 The fifth Elimination Chamber event took place on February 23, 2014, at the Target Center in Minneapolis.