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.

Ex Input:
Passage: Miklo is a man of Mexican and White American ethnicity who grew up in El Pico Aliso barrio in east Los Angeles. Upon moving back home from Las Vegas, Nevada, Miklo goes to stay with his two cousins Paco and Cruz. Miklo tells Cruz that he wants to join their gang Vatos Locos. While Paco is initially skeptical, Miklo later proves himself when he performs an attack on a rival gang, Tres Puntos. Afterwards he is made a member of Vatos Locos.
However, the Tres Puntos gang soon takes revenge by brutally attacking Cruz who is a budding artist, and damages his back for life. When Vatos Locos learn of the attack, they perform a well-planned counterattack. However, things go wrong when Miklo ends up getting shot by their rival gang's leader, "Spider". Miklo is able to shoot and kill Spider, but has to be rushed to the hospital by Paco while being chased by police. Paco crashes into another car at the El Pino tree and they are both arrested.
From here, the trio's paths diverges: Miklo is sent to San Quentin State Prison for murder, Paco volunteers for military service in the United States Marine Corps as an alternative choice to prison, and Cruz continues his passion for art. He also becomes a heroin addict due to the recurring back pain. His addiction leads to him being disowned by his family after his 12-year-old brother, Juanito, sees Cruz's needle next to him while he is passed out and naively decides to inject himself with it and dies from an overdose. Paco becomes an L.A.P.D. narcotics detective after leaving the Marine Corps.

Ex Output:
Whose back is damaged for life?

Ex Input:
Passage: A man unveils a valuable painting he picked up for $50,000 and is killed. A card with a large black ace (of spades) is put on his chest. Another "Black Ace" victim. The killer sends his victims a Black Ace card, warning them they are to die and then kills them, his way of taunting the police. Neil Broderick, an author, intends writing a book about him and is on his way to see Thornton Drake to get more information about him. Austin Winters is his secretary and Neil met his daughter Martha on the train, on the way to Chicago.
Drake has just received a Black Ace, with the words: "At seven tomorrow night", the time he is to be killed. Two plainclothes cops arrive from police headquarters, having had a call, Clancy and Dugan (both incompetents). Martha suggests that they leave for Drake's Louisiana plantation tomorrow morning and be far away from there at seven tomorrow night. Drake agrees and suggests they all go. On the flight, the lights go off for some seconds and when they come on again, Austin Winters is dead without a mark on him.
At the plantation, Clancy ineptly questions the suspects till Neil points out that they are now in another state, so out of their jurisdiction. Neil goes to another room and makes a phone call, then signals to someone outside. After he finishes his call, the line is cut. Meanwhile one of the pilots has taken off in the plane, leaving the other pilot, Henderson, behind who claims he does not know anything though he was out of the cockpit when Winters was killed.
The coroner finds a letter on the dead man which is to be read if Winters dies. It will reveal the identity of the Black Ace. Clancy starts reading it aloud and unsurprisingly the lights go off and the letter has vanished when the lights are turned on again. People locked in their rooms that night and Neil has a hidden car outside signal to him.

Ex Output:
Who is Neil Broderick writing a book about?

Ex Input:
Passage: Simon is a decent fellow, married to a lovely woman Pam, living comfortably with two children. He has grown tired of the lack of sex and is attracted to a cellist friend of his wife, Katrien.
Katrien travels to New Zealand to follow her husband Klaus in an attempt to rekindle their marriage. However, she catches him in bed with a young arts student and so their marriage collapses. Katrien, now available and lonely from the breakdown of her marriage, is susceptible to Simon's attraction.The two become fascinated with each other, but don't immediately start an affair. She doesn't want to destroy his greatest appeal, which is that he is upright and reliable. They eventually attempt some meetings, but something always goes wrong. Either he arrives late and the children are coming, or he ejaculates prematurely.
Opportunity comes when they discover that they are both going to be in Germany the same week. Simon books a hotel room in Berlin, where he and his boss are attending a convention. Katrien comes to his room, but before they manage to have sex, his wife surprises him by showing up. Katrien escapes to an adjacent room through an interconnecting door and Simon and his wife make violent love, which Katrien hears through the wall. She gets upset because they were just about to have sex and he is having sex with his wife.
Pam sees Simon sneak into the hallway during a speech and hears Katrien's voice on the other end of his phone, figures out what they are doing, and flies back to Wellington angry. She soon asks for a separation.

Ex Output:
What is the name of the person Katrien is friends with?