user: Q: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: who construct a tank to hold the whales? Title: Star Trek IV: The Voyage Home Movie plot: In 2286, a large cylindrical probe moves through space, sending out an indecipherable signal and disabling the power of ships it passes. As it takes up orbit around Earth, its signal disables the global power grid and generates planetary storms, creating catastrophic, sun-blocking cloud cover. Starfleet Command sends out a planetary distress call and warns starships not to approach Earth. On the planet Vulcan, the former officers of the USS Enterprise are living in exile (after the events of Star Trek III: The Search for Spock). Accompanied by the Vulcan Spock, still recovering from his resurrection, the crewâexcept for Saavik, who remains on Vulcanâtake their captured Klingon Bird-of-Prey starship (nicknamed the Bounty, after the Royal Navy ship) and head to Earth to face trial for their theft and destruction of Enterprise. Hearing Starfleet's warning, Spock determines that the probe's signal matches the song of extinct humpback whales, and that the object will continue to wreak havoc until its call is answered. The crew uses their ship to travel back in time via a slingshot maneuver around the Sun, planning to return with a whale to answer the alien signal. Arriving in 1986, the crew finds their ship's power drained. Hiding their ship in San Francisco's Golden Gate Park using its cloaking device, the crew split up to accomplish several tasks: Admiral James T. Kirk and Spock attempt to locate humpback whales, while Montgomery Scott, Leonard McCoy, and Hikaru Sulu construct a tank to hold the whales they need for a return to the 23rd century. Uhura and Pavel Chekov are tasked to find a nuclear reactor, whose energy leakage will enable their ship's power to be restored. Kirk and Spock discover a pair of whales in the care of Dr. Gillian Taylor at a Sausalito museum, and learn they will soon be released into the wild. Kirk tells her of his mission and asks for the tracking frequency for the whales, but she refuses to cooperate. Meanwhile, Scott, McCoy, and Sulu trade the formula of transparent aluminum for...
A: Montgomery Scott, Leonard McCoy, and Hikaru Sulu.


Question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What does Harold and Kumar mistake the group of helpers for? Title: Harold & Kumar Escape from Guantanamo Bay Movie plot: Following the events of Harold &amp; Kumar Go to White Castle, Harold Lee and Kumar Patel purchase plane tickets to Amsterdam so Harold can pursue a romance with neighbor Maria. Before boarding their plane, they encounter a friend from college named Colton, and Kumar's ex-girlfriend, Vanessa, who are getting married in Texas. During the flight, a woman suspects Kumar is a terrorist after mistaking his bong for a bomb. Sky marshals detain them and the plane diverts to Washington D.C. Ron Fox, an obsessive and racist Deputy Secretary of Homeland Security, sends them to Guantanamo Bay detention camp in Cuba, thinking they are agents of a joint Al-Qaeda and North Korean conspiracy, against the advice of NSA Vice-Chairman John Beecher. With the inadvertent assistance of two other prisoners, Harold and Kumar escape and board a Cuban refugee boat to Miami, Florida. They meet with their college friend, Raza, who loans them a car so they can travel to Texas to get help from Colton, whose family has political connections. During the car ride, Kumar remembers meeting Vanessa at the library and smoking a joint for the first time. Fox interrogates Harold and Kumar's parents utilizing an incompetent interpreter, despite their English fluency. Harold and Kumar crash their car in Birmingham, Alabama. They flee on foot after mistaking an approaching group of helpful African-Americans for gang members. They meet a friendly hunter and stay with him and his wife at their well-kept trailer home. When someone knocks at the door, Harold and Kumar hide in the basement and discover the couple's inbred cycloptic son. At night, while Kumar dreams of a threesome with Vanessa and a large bag of marijuana, Harold is shocked to find the son in his bed, and they promptly leave. In the woods, Harold and Kumar encounter a Ku Klux Klan rally. They hide until some members arrive with a beer keg. After knocking them out, and putting on their robes, they mingle until the other two return, declaring them to be "Mexicans". The Klansmen chase Harold...
Answer: African-American gang members


Question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Why did Brash Bridget returns her love? Title: The Sisterhood of the Traveling Pants Movie plot: The movie follows four teenage girls during a summer in which each goes through a crucial life experience. They succeed due to their loyal support of each other, symbolized by a pair of jeans (the "Travelling Pants") that they take turns wearing.Shy Lena visits European relatives on an picturesque Greek island. She falls in love with a sensitive boy in spite of the fact that their families are having an old-fashioned feud. She learns to assert herself and finally wins the family's permission for a final meeting with her lover.Brash Bridget, an athlete, goes to sports camp and is attracted to one of the coaches. He returns her love but is more concerned with keeping his job, which he will lose if they are caught. Bridget pursues him anyway and persuades him to make love to her on a beach. He panics and breaks off the relationship, and she realizes that she has thrown away her virginity for nothing (The sexual contact is off-screen and implied, rather than stated as a fact.).Tibby, a sour-tempered girl, decides to make a "suckumentary" with her video tools, expressing her view of the world. During the summer she befriends Bailey, a girl who turns out to be dying from leukemia. After Bailey's death, Tibby is as bitter at life as ever, but discovers that Bailey left behind a video message, thanking Tibby for her friendship and urging her not to let Bailey's tragedy blight her life.Carmen, an emotional girl with low self-esteem, visits her estranged father and discovers that he is marrying a divorcee with teenagers of her own. Although they are blandly polite, Carmen feels like an outsider and suspects that they resent her "intrusion", and so she finally turns home. The Sisterhood urge her to attend the wedding anyway, loaning her the "magic" jeans and coming along for moral support. Her father spots her in the audience and invites her to stand with him at the altar as he marries, and she feels accepted after all.
Answer:

assistant: Can't answer