instruction:
In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
question:
What is needed to prove the theory?, Context: In the early 11th century, the Muslim physicist Ibn al-Haytham (Alhacen or Alhazen) discussed space perception and its epistemological implications in his Book of Optics (1021), he also rejected Aristotle's definition of topos (Physics IV) by way of geometric demonstrations and defined place as a mathematical spatial extension. His experimental proof of the intromission model of vision led to changes in the understanding of the visual perception of space, contrary to the previous emission theory of vision supported by Euclid and Ptolemy. In "tying the visual perception of space to prior bodily experience, Alhacen unequivocally rejected the intuitiveness of spatial perception and, therefore, the autonomy of vision. Without tangible notions of distance and size for correlation, sight can tell us next to nothing about such things."
answer:
vision

question:
Did the Tulsa Talons move to San Antonio first or did the Tulsa Shock move to Dallas-Fort Worth first?, Context: Oklahoma has teams in basketball, football, arena football, baseball, soccer, hockey, and wrestling located in Oklahoma City, Tulsa, Enid, Norman, and Lawton. The Oklahoma City Thunder of the National Basketball Association (NBA) is the state's only major league sports franchise. The state had a team in the Women's National Basketball Association, the Tulsa Shock, from 2010 through 2015, but the team relocated to DallasFort Worth after that season and became the Dallas Wings. Oklahoma supports teams in several minor leagues, including Minor League Baseball at the AAA and AA levels (Oklahoma City Dodgers and Tulsa Drillers, respectively), hockey's ECHL with the Tulsa Oilers, and a number of indoor football leagues. In the last-named sport, the state's most notable team was the Tulsa Talons, which played in the Arena Football League until 2012, when the team was moved to San Antonio. The Oklahoma Defenders replaced the Talons as Tulsa's only professional arena football team, playing the CPIFL. The Oklahoma City Blue, of the NBA Development League, relocated to Oklahoma City from Tulsa in 2014, where they were formerly known as the Tulsa 66ers. Tulsa is the base for the Tulsa Revolution, which plays in the American Indoor Soccer League. Enid and Lawton host professional basketball teams in the USBL and the CBA.
answer:
Tulsa Talons

question:
If we are not talking about zero average values, but different kind of values, what are we talking about?, Context: QED vacuum has interesting and complex properties. In QED vacuum, the electric and magnetic fields have zero average values, but their variances are not zero. As a result, QED vacuum contains vacuum fluctuations (virtual particles that hop into and out of existence), and a finite energy called vacuum energy. Vacuum fluctuations are an essential and ubiquitous part of quantum field theory. Some experimentally verified effects of vacuum fluctuations include spontaneous emission and the Lamb shift. Coulomb's law and the electric potential in vacuum near an electric charge are modified.
answer:
variances