You will be given a summary of a story. You need to create a question that can be answered from the story. You can create a question about characters, events, facts and beliefs, etc. Your question should be specific, try not to use pronouns instead of full names. As the stories are sometimes movie plots, they will contain actor names in parentheses. You should not use those names. Only use character names. Try to ask a question about all parts of the plot, not just the beginning.

[Q]: While Tom Swift is working on his latest new invention, the electric rifle, he meets an African safari master whose stories of elephant hunting sends the group off to deepest, darkest Africa. Hunting for ivory is the least of their worries, as they find out some old friends are being held hostage by the fearsome tribes of the red pygmies.
Swift builds two major inventions in this volume. The first is a replacement airship, known as The Black Hawk. This new airship is to replace The Red Cloud, which was destroyed during his adventures in Tom Swift in the Caves of Ice. This airship is of the same general construction as The Red Cloud, but is smaller and more maneuverable.
Of foremost notice is Swift's invention of the electric rifle, a gun which fires bolts of electricity. The electric rifle can be calibrated to different levels of range, intensity and lethality; it can shoot through solid walls without leaving a hole, and is powerful enough to kill a rampaging whale, as in their steamer trek to Africa. With the electric rifle, Tom and friends bring down elephants, rhinoceroses, and buffalo, and save their lives several times in pitched battle with the red pygmies. It also can discharge a globe of light that was described as being able to maintain itself, like ball lightning, making hunting at night much safer in the dark of Africa. In appearance, the rifle looked very much like contemporary conventional rifles.
[A]: What two levels of range can the rifle calibrate?

[Q]: Years after a zombie apocalypse, survivors have set up outposts across the United States. One outpost in the city of Pittsburgh, Pennsylvania, contains a feudal-like government. Bordered on two sides by rivers and on the third by an electric fence, the city has become a sanctuary. The rich and powerful live in a luxury high-rise called Fiddler's Green, while the rest of the population subsists in squalor. Paul Kaufman (Dennis Hopper), the city's ruthless ruler, has sponsored Dead Reckoning, an armored personnel vehicle that can travel through the zombie-infested areas with ease.
Riley Denbo (Simon Baker) is the designer and commander of Dead Reckoning. Unlike Kaufman, Riley is respected for his work in protecting the citizens, as well as providing them with food and medical supplies. Using Dead Reckoning, Riley and his crew ventured into areas overrun with zombies to scavenge for supplies. On these mission, they notice many zombies exhibiting intelligent behavior. One such zombie is "Big Daddy" (Eugene Clark), formerly a gas station owner.
After the mission, Riley retires from commanding Dead Reckoning. Back to the city, he gets to Chihuahua (Phil Fondacaro)'s bar. There, he sees a hooker named Slack (Asia Argento) being forced in a cage with some zombies to entertain guests. Riley and Charlie (Robert Joy) save Slack; Charlie kills Chihuahua in the ensuing chaos. Riley, Charlie and Slack are arrested. Slack reveals that Kaufman ordered her execution, for helping Mulligan (Bruce McFee) to instigate rebellion among the poor.
Meanwhile, Cholo DeMora (John Leguizamo), Dead Reckoning's second in command, is denied an apartment in Fiddler's Green despite his service to Kaufman. In retaliation, Cholo takes over Dead Reckoning and threatens to destroy Fiddler's Green with it. Kaufman approaches Riley and tasks him, as well as Charlie and Slack, to retrieve Dead Reckoning. They are supervised by Manolete (Sasha Roiz), Motown (Krista Bridges), and Pillsbury (Pedro Miguel Arce).
On the way, Manolete is bitten and then killed by Slack. After catching up with Dead Reckoning, Riley approaches the vehicle alone. Charlie, Slack, and Pillsbury follow him after subduing Motown and leaving her behind. Realising Riley is working for Kaufman, Cholo holds both Riley and Charlie at gunpoint. As he prepares to fire Dead Reckoning's missiles at Fiddler's Green, Riley uses a small device and deactivates Dead Reckoning's weapons systems; he then destroys the device. Motown, who had regained consciousness, opens fire and nearly kills both Riley and Cholo (who is maimed by one of the gunshots). She is bitten by a zombie and killed by Slack. Riley convinces Cholo to allow him escape North and to join him, but the latter decides to head back to Fiddler's Green to deal with Kaufman; his partner, Foxy (Tony Nappo) accompanies him. While en route, Cholo is bitten by a zombie and leaves to kill Kaufman by himself. Riley takes over Dead Reckoning once again and returns to Fiddler's Green.
Elsewhere, Big Daddy (who had gathered a large group of zombies) learns that they can walk safely underwater. He leads the zombies to cross the river to the human city. They take the guards by surprise and begin massacring the people. As a result of the zombies making it into the city, the electric fences that once kept the zombies out have now become a wall to trap them and the humans inside. Seeing the city overrun, Kaufman runs with his money, and encounters a zombified Cholo in the parking garage. As the two struggle, Big Daddy kills both with a propane tank.
Riley's group arrives at the city only to come upon a drawbridge having already been drawn. Riley leaves to bring the bridge down, but a small group of zombies begin to attack Dead Reckoning. Riley and the others manage to dispose and evade the zombies. After crossing the bridge, they helplessly witness people being killed by the zombies. Realizing it is too late to save them, they mercy kill them with missiles. It is then revealed that most of the poor people were lead to safety by Mulligan, thus surviving the assault. Riley and Mulligan share a well-meaning goodbye as they split up with their groups. As they see Big Daddy and the zombies, who are, curiously, not attacking the surviving humans, leaving the city, Riley decides to leave them alone. While lighting up the rest of the fireworks (which were earlier used to distract the zombies but are now useless), Riley's group set off for Canada on Dead Reckoning.
[A]: What did the zombies discover that caused them to be able to enter the city?

[Q]: The galaxy is in the midst of a civil war. Spies for the Rebel Alliance have stolen plans to the Galactic Empire's Death Star, a heavily armed space station capable of destroying planets. Rebel leader Princess Leia has the plans, but her ship is captured by Imperial forces under the command of the evil Sith lord Darth Vader. Before she is captured, Leia hides the plans in the memory of an astromech droid, R2-D2, along with a holographic recording. The droid flees to the surface of the desert planet Tatooine with C-3PO, a protocol droid.
The droids are captured by Jawa traders, who sell them to moisture farmers Owen and Beru Lars and their nephew, Luke Skywalker. While cleaning R2-D2, Luke accidentally triggers part of Leia's message, in which she requests help from Obi-Wan Kenobi. The next morning, Luke finds R2-D2 searching for Obi-Wan, and meets Ben Kenobi, an old hermit who lives in the hills and reveals himself to be Obi-Wan. Obi-Wan tells Luke of his days as a Jedi Knight, former Galactic Republic peacekeepers with supernatural powers derived from an energy called The Force, who were all but wiped out by the Empire. Contrary to his uncle's statements, Luke learns that his father, Anakin, fought alongside Obi-Wan as a Jedi Knight. Obi-Wan tells Luke that Vader was his former pupil who turned to the dark side of the Force and killed Anakin. Obi-Wan presents Luke his father's weapon - a lightsaber.
Obi-Wan views Leia's complete message, in which she begs him to take the Death Star plans to her home planet of Alderaan and give them to her father for analysis. Obi-Wan invites Luke to accompany him to Alderaan and learn the ways of the Force. Luke declines, but changes his mind after discovering that Imperial stormtroopers searching for C-3PO and R2-D2 have destroyed his home and killed his aunt and uncle. Obi-Wan and Luke hire smuggler Han Solo and his Wookiee first mate Chewbacca to transport them to Alderaan on Han's ship, the Millennium Falcon.
Upon the Falcon's arrival at the location of Alderaan, the group discover that the planet has been destroyed by order of the Death Star's commanding officer, Grand Moff Tarkin, as a show of power. The Falcon is captured by the Death Star's tractor beam and brought into its hangar bay. While Obi-Wan goes to disable the tractor beam, Luke discovers that Leia is imprisoned aboard, and with the help of Han and Chewbacca, rescues her. After several escapes, the group makes its way back to the Falcon. Obi-Wan disables the tractor beam, and on the way back to the Falcon, he engages in a lightsaber duel with Vader. Once he is sure the others can escape, Obi-Wan allows himself to be killed. The Falcon escapes the Death Star, unknowingly carrying a tracking beacon, which the Empire follows to the Rebels' hidden base on Yavin IV.
The Rebels analyze the Death Star's plans and identify a vulnerable exhaust port that connects to the station's main reactor. Luke joins the Rebel assault squadron, while Han collects his payment for the transport and intends to leave, despite Luke's request that he stay and help. In the ensuing battle, the Rebels suffer heavy losses after several unsuccessful attack runs, leaving Luke as one of the few surviving pilots. Vader leads a squad of TIE fighters and prepares to attack Luke's X-wing fighter, but Han returns and fires on the Imperials, sending Vader spiraling away. Helped by guidance from Obi-Wan's spirit, Luke uses the Force and successfully destroys the Death Star seconds before it can fire on the Rebel base. Leia awards Luke and Han with medals for their heroism.
[A]:
What does the hermit Ben Kenobi reveal to Luke?