Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What is the relationship between Ferris and Cameron? Title: Ferris Bueller's Day Off Movie plot: In suburban Chicago, high school senior Ferris Bueller fakes sickness to stay home. Ferris frequently breaks the fourth wall, giving the audience advice on how to skip school, and to narrate about his friends. His younger sister Jeannie is less-convinced, but goes to school anyway. Dean of Students Edward R. Rooney notes and suspects Ferris is being truant again and commits to catching him. However, Ferris uses a computer to alter the school's records to indicate his absences from 9 to 2. Ferris convinces his friend Cameron Frye, who is absent due to illness, to report that his girlfriend Sloane Peterson's grandmother has died. Rooney doubts this, but they succeed as planned. Borrowing Cameron's father's prized 1961 Ferrari 250 GT California Spyder against Cameron's instinct, Ferris, Cameron, and Sloane drive into Chicago to sightsee. Leaving the car with two parking attendants, who promptly joyride it unknowingly to them, the trio visit the Art Institute of Chicago, Sears Tower, Chicago Mercantile Exchange, and Wrigley Field. They then go to a French restaurant for lunch where Ferris poses as the "Sausage King of Chicago", Abe Froman, while narrowly avoiding his father, who is eating lunch at the restaurant. Meanwhile, after humiliatingly failing to find Ferris, Rooney visits the Bueller residence and fails to enter, being attacked by the family rotweiller as his car is towed. Jeannie, skipping class, returns home and discovers her brother's ruse, but encounters Rooney snooping. She kicks him and calls the police, who arrest her for false reporting after Rooney leaves. While at the station, Jeannie meets a juvenile delinquent, who advises her not to worry so much about Ferris. After a cab ride where Cameron exclaims disinterest, Ferris impromptu joins a parade float during the Von Steuben Day parade and lip-syncs Wayne Newton's cover of "Danke Schoen", as well as a rendition of The Beatles' "Twist and Shout" that gets the entire crowd dancing. Just as things shine bright, they retrieve the car and notice...
The answer to this question is:
Friends