You will be given a definition of a task first, then some input of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: Imagery has always been an important part of the Orb's persona. This is most prominent during live performances, where they often project surreal images against onstage screens. Common images include morphing faces, futuristic cityscapes, and aliens. They have long associated their act with absurd symbology with images such as floating pigs. This has carried over to their music videos, most of which are spacy, brightly coloured montages of surreal images including astronauts, clouds, and neon dolphins. Because of their use of psychedelic images at shows, the Orb's shows are frequently compared to those of Pink Floyd, who also used in-show imagery and films. Paterson cites Godfrey Reggio's and Philip Glass's film Koyaanisqatsi as a primary influence to their concert imagery.The Orb's album art features much of the same imagery as their live act. Graphic design group The Designers Republic created the cover art for the earlier work, including Adventures Beyond the Ultraworld, U.F.Orb, and the singles from those two albums. For their next album, the Orb poked fun at their Pink Floyd comparisons with the cover of Live 93 featuring a floating stuffed sheep over the Battersea Power Station, which had appeared on the cover of Pink Floyd's Animals. The artwork found in Badorb.com releases was similar to the Orb's odd artwork of the mid-1990s, as it was stylistically similar and contained little writing. Paterson has also dabbled in the creation of cover art himself, designing the cover of Okie Dokie It's The Orb on Kompakt.
Output:
What is the name of the group for whose concert imagery Koyaanisqatsi is a primary influence?