Given the question: Information: - H.O.R.S.E. is a form of poker commonly played at the high-stakes tables of casinos. It consists of rounds of play cycling among: - Aerial rigging is a specialty within the field of rigging that deals specifically with human loads . Aerial rigging is the process of setting up equipment used to make humans fly , specifically aerial circus and aerial dance equipment . The field is of critical importance , and a thorough grasp of the principles of aerial rigging is essential in order to ensure the safety of the artists and the audience . Aerial rigging is commonly practiced to different degrees by specialty fabricators , professional riggers , professional aerial artists , as well as amateur aerial artists . Most aerial circus equipment is built by fabricators around the world that build equipment specifically for the circus industry . Aerial artists , both professional and amateur , often become riggers out of necessity . They generally learn to rig what they need . WLA ( Weak Link Analysis ) is the process of systematically analyzing aerial rigging for the weakest link or links in the system . WLA is the most common process used by aerial riggers to assess and improve rigging . However , it is not the only system used . - Clowns are comic performers who employ slapstick or similar types of physical comedy, often in a mime style. - A trapeze is a short horizontal bar hung by ropes or metal straps from a support. It is an aerial apparatus commonly found in circus performances. Trapeze acts may be static, spinning (rigged from a single point), swinging or flying, and may be performed solo, double, triple or as a group act. It is officially the last performance of the circus. - Object manipulation is a form of dexterity play or performance in which one or more people physically interact with one or more objects. Many object manipulation skills are recognised circus skills. Other object manipulation skills are linked to sport, magic, and everyday objects or practices. Many object manipulation skills use special props made for that purpose: examples include the varied circus props such as balls, clubs, hoops, rings, poi, staff, and devil sticks; magic props such as cards and coins; sports equipment such as nunchaku and footballs. Any other object can also be used for manipulation skills. Object manipulation with ordinary items may be considered to be object manipulation when the object is used out of its socially acknowledged context and used differently from its original purpose. - A circus is a company of performers that may include clowns, acrobats, trained animals, trapeze acts, musicians, hoopers, tightrope walkers, jugglers, unicyclists, as well as other object manipulation and stunt-oriented artists. The term 'circus' also describes the performance which has followed various formats through its 250-year modern history. Philip Astley is credited with being the 'father' of the modern circus when he opened the first circus in 1768 in England. Early circuses were almost exclusively demonstrations of equestrian skills with a few other types of acts to link the horsemanship performances. Performances developed significantly through the next fifty years, with large scale theatrical battle reenactments becoming a significant feature. The 'traditional' format, whereby a ringmaster introduces a varied selection of acts that mostly perform choreographed acts to traditional music, developed in the latter part of 19th century and continued almost universally to be the main style of circus up until the 1970s. - Philip Astley (8 January 1742 27 January 1814) was an English equestrian, circus owner, and inventor, regarded as being the "father of the modern circus". The circus industry, as a presenter of an integrated entertainment experience that includes music, domesticated animals, acrobats, and clowns, traces its heritage to Astley's Amphitheatre, a riding school that Astley founded in London following the success of his invention of the circus ring in 1768. What is the relationship between 'aerial rigging' and 'circus skills'?
The answer is:
subclass of