instruction:
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.
question:
 Heroin addict Mark Renton and his circle of friends are introduced: amoral con artist Simon "Sick Boy" Williamson (also an addict), simple-minded, friendly Daniel "Spud" Murphy (another addict), clean-cut athlete Tommy MacKenzie, and psychopath Francis "Franco" Begbie, who picks fights with people who get in his way.
Renton decides to quit heroin and buys opium rectal suppositories from dealer Mikey Forrester to ease the transition. After his final hit (and a violent spell of diarrhea caused by cessation of heroin) he locks himself into a cheap hotel room to endure withdrawal. He later goes with his friends to a club, finding that his sex drive has returned, he eventually leaves with a young woman named Diane, and they have sex in her home. In the morning, he realises that Diane is a 15-year-old schoolgirl and that her "flatmates" are actually her parents. Anxious, Renton tries to ignore the incident, but is forced to remain in touch after Diane blackmails him.
Spud, Sick Boy, and Renton start using heroin again. Tommy, whose girlfriend dumped him after a chain of events initiated by Renton, begins using as well. One day the group's heroin-induced stupor is abruptly interrupted when Allison, their friend and fellow addict, discovers that her infant daughter Dawn has died from neglect without any of the group noticing. All are horrified, especially Sick Boy, who is implied to have secretly been Dawn's father.
Renton and Spud are caught stealing from a bookshop and arrested. Spud goes to prison, but Renton avoids punishment by entering a Drug Interventions Programme, where he is given methadone. Despite support from his family, Renton is desperate for a more substantial high and escapes to his drug dealer's flat, where he nearly dies of an overdose, and his dealer sends him to hospital in a taxicab. After he leaves the hospital Renton's parents take him home and lock him in his old bedroom to force him through withdrawal. As Renton goes through severe withdrawal symptoms, he has nightmares of Diane singing on the bed, his friends giving him advice, Allison's dead baby crawling on the ceiling, and an imagined TV game show in which host Dale Winton asks Renton's parents questions about HIV.
Renton is finally roused from his nightmares and hallucinations by his parents, who tell him he needs to get tested. Despite years of sharing syringes with other addicts, Renton tests negative. Low-spirited and depressed, he visits Tommy, who has succumbed to addiction and is now severely ill and HIV-positive. Renton moves to London and takes a job as a property letting agent. He begins to enjoy his new life of sobriety and saves up money on the side while corresponding with Diane. However, Begbie, who has committed an armed robbery, and Sick Boy, now a pimp and drug dealer, move into Renton's bedsit unannounced, to Renton's annoyance.
In Edinburgh, Tommy dies from HIV-related toxoplasmosis and the three travel back to Scotland for his funeral. They meet Spud, who has been released from prison. Sick Boy suggests a lucrative but dangerous heroin transaction, but needs Renton to supply half of the initial  4,000. Renton injects himself with a sample to test the heroin's purity. The four sell the heroin to a dealer for  16,000. During their celebration at a pub, Renton secretly suggests to Spud that they steal the money, but Spud is too scared of Begbie to even consider it. Renton is finally fed up with Begbie after witnessing him glass and then severely beat a man who he bumped into, causing beer to be spilt on him. Early in the morning as the others sleep, Renton quietly takes the money from sleeping Begbie's arms. Spud wakes up just as Renton is leaving the hotel room. The pair stare at each other for a few moments until Renton walks out, Spud remains silent and does not tell the others. When Begbie awakens, he destroys the hotel room in a violent rage, the police arrive causing Spud and Sick Boy to flee. Renton reiterates his vow to live a stable, traditional life and leaves Spud  2,000.
answer:
What drug are the main characters addicted to?


question:
 The story is narrated by Overton, godfather to the central character.
The novel takes its beginnings in the late eighteenth and early nineteenth centuries to trace Ernest's emergence from previous generations of the Pontifex family. John Pontifex was a carpenter; his son George rises in the world to become a publisher; George's son Theobald, pressed by his father to become a minister, is manipulated into marrying Christina, the daughter of a clergyman; the main character Ernest Pontifex is the eldest son of Theobald and Christina.
The author depicts an antagonistic relationship between Ernest and his hypocritical and domineering parents. His aunt Alethea is aware of this relationship, but dies before she can fulfill her aim of counteracting the parents' malign influence on the boy. However, shortly before her death she secretly passes a small fortune into Overton's keeping, with the agreement that once Ernest is twenty-eight, he can receive it.
As Ernest develops into a young man, he travels a bumpy theological road, reflecting the divisions and controversies in the Church of England in the Victorian era. Easily influenced by others at university, he starts out as an Evangelical Christian, and soon becomes a clergyman. He then falls for the lures of the High Church (and is duped out of much of his own money by a fellow clergyman). He decides that the way to regenerate the Church of England is to live among the poor, but the results are, first, that his faith in the integrity of the Bible is severely damaged by a conversation with one of the poor he was hoping to redeem, and, second, that under the pressures of poverty and theological doubt, he attempts a sexual assault on a woman he had incorrectly believed to be of loose morals.
This assault leads to a prison term. His parents disown him. His health deteriorates.
As he recovers he learns how to tailor and decides to make this his profession once out of prison. He loses his Christian faith. He marries Ellen, a former housemaid of his parents, and they have two children and set up shop together in the second-hand clothing industry. However, in due course he discovers that Ellen is both a bigamist and an alcoholic. Overton at this point intervenes and pays Ellen a stipend, and she happily leaves with another for America. He gives Ernest a job, and takes him on a trip to Continental Europe.
In due course Ernest becomes 28, and receives his aunt Alethea's gift. He returns to the family home until his parents die: his father's influence over him wanes as Theobald's own position as a clergyman is reduced in stature, though to the end Theobald finds small ways purposefully to annoy him. Ernest becomes an author of controversial literature.
answer:
Where does Ellen go after Overton gives her a stipend?


question:
 Barbra (Judith O'Dea) and Johnny Blair (Russell Streiner) drive to rural Pennsylvania for an annual visit to their father's grave. Barbara is attacked by a strange man (Bill Hinzman). Johnny tries to rescue his sister, but the man throws him against a gravestone; Johnny strikes his head on the stone and is left unconscious. After a mishap with the car, Barbara escapes on foot, with the stranger in pursuit, and later arrives at a farmhouse, where she discovers a woman's mangled corpse. Fleeing from the house, she is confronted by strange menacing figures like the man in the graveyard. Ben (Duane Jones) takes her into the house, driving the "monsters" away and sealing the doors and windows. Throughout the night, Barbra slowly descends into a stupor of shock and insanity.
Ben and Barbra are unaware that the farmhouse has a cellar, housing an angry married couple Harry (Karl Hardman) and Helen Cooper (Marilyn Eastman), along with their daughter Karen (Kyra Schon). They sought refuge after a group of the same monsters overturned their car. Tom (Keith Wayne) and Judy (Judith Ridley), a teenage couple, arrived after hearing an emergency broadcast about a series of brutal murders. Karen has fallen seriously ill after being bitten by one of the monsters. They ventured upstairs when Ben turns on a radio, while Barbra awakens from her stupor. Harry demands that everyone hide in the cellar, but Ben deems it a "deathtrap" and continues upstairs, to barricade the house with Tom's help.
Radio reports explain that a wave of mass murder is sweeping across the eastern United States. Ben finds a television, and they watch an emergency broadcaster (Charles Craig) report that the recently deceased have become reanimated and are consuming the flesh of the living. Experts, scientists, and the United States military fail to discover the cause, though one scientist suspects radioactive contamination from a space probe. It returned from Venus, and was deliberately exploded in the Earth's atmosphere when the radiation was detected.
Ben plans to obtain medical care for Karen when the reports listed local rescue centers offering refuge and safety. Ben and Tom refuel Ben's truck while Harry hurls molotov cocktails from an upper window at the "undead". Judy follows him, fearing Tom's safety. Tom accidentally spills gasoline on the truck setting it ablaze. Tom and Judy try to drive the truck away from the pump, but Judy is unable to free herself from its door, and the truck explodes, instantly killing Tom and Judy; the undead promptly eat the charred remains.
Ben returns to the house, but is locked out by Harry. Eventually forcing his way back in, Ben beats Harry, angered by his cowardice, while the undead feed on the remains of Tom and Judy. A news report reveals that, only a gunshot or heavy blow to the head can stop them, aside from setting the "reactivated bodies" on fire. It also reported that posses of armed men are patrolling the countryside to restore order.
The lights go out moments later, and the undead break through the barricades. Harry grabs Ben's rifle and threatens to shoot him, but Ben wrestles the gun away and fires. Harry stumbles into the cellar and collapses next to Karen, mortally wounded. She has also died from her illness. The undead try to pull Helen and Barbra through the windows, but Helen frees herself. She returns to the refuge of the cellar to see Karen is reanimated and eating Harry's corpse. Helen is frozen in shock, and Karen stabs her to death with a masonry trowel. Barbra, seeing Johnny among the undead, is carried away by the horde and devoured. As the undead overrun the house, Ben seals himself inside the cellar, where Harry and Helen are reanimating, and he is forced to shoot them.
Ben is awakened by the posse's gunfire outside the next morning. He ventures upstairs. A member of the posse mistakes him for one of the undead and shoots him through the forehead. The film ends with a photo montage of Ben as his body is thrown into the posse's bonfire.
answer:

What does Helen see when she walks back into the cellar?