Given the task definition and input, reply with output. 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: Chrissy, Ping and Mackenzie (nicknamed "Mac") are a trio of best friends and cheerleaders from Bay City High School in Bay City. The three are your typical teenage girls: they're concerned with their looks, boys, getting ready for school dances and are busy preparing for an upcoming cheerleading competition. But one day, while at a hair salon that's owned and operated by Chrissy's friend, Adrienne, the girls get zapped by a jolt of electricity, but a lot more changes than just their hairstyles. The jolt of electricity ends up giving the girls superpowers: Chrissy gains superhuman strength (and a red supersuit), Ping gains the ability to fly (and a blue supersuit) and Mac gains the power of X-ray vision (and a green supersuit). The girls soon find themselves facing a much greater responsibility than simply preparing for their upcoming cheerleading competition: thwarting the plans of total world domination by the evil Dr. Nightingale (who also happens to be the father of one of Chrissy, Ping and Mac's fellow cheerleaders).
While the girls are excited to use their new powers to become superheroes (especially Chrissy), they soon learn that becoming a superhero won't be as simple as they think—they need to practice how to properly use their powers and work together as a team (especially since they each only have one superpower). Also, the girls' superpowers only be activated when they drink a fruit smoothie, which also triggers their transformations. Ultimately, the girls manage to defeat Dr. Nightingale and his cronies, at least for the time being, and they also manage to win the cheerleading competition they had spent most of the movie preparing for.
Popular teen lingo pervades this feature-length presentation that's packed with humorous detail like flower power hippies, a fully equipped car à la James Bond, and a character who sounds like a cross between Austin Powers and Officer Tom Hanson.
Whose friend owns the salon where the girls get electrocuted?