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: The first eruptions of Nevado del Ruiz occurred about 1.8 million years ago at the beginning of the Pleistocene epoch. Three primary eruption periods in the history of the massif have been identified: ancestral, older and present. During the ancestral period between one million to two million years ago, a complex of large stratovolcanoes was created. Between 1.0 million and 0.8 million years ago, they partially collapsed, forming large (5–10 km wide) calderas. During the older period, which lasted from 0.8 million to 0.2 million years ago, a new complex of large stratovolcanoes developed (including Older Ruiz, Tolima, Quindio, and Santa Isabel). Once again explosive summit calderas formed from 0.2 million to 0.15 million years ago.The present period began about 150,000 years ago and involved the development of the present volcanic edifice through the emplacement of lava domes made of andesite and dacite (igneous rocks) inside older calderas. During the past 11,000 years, Nevado del Ruiz passed through at least 12 eruption stages, which included multiple slope failures (rock avalanches), pyroclastic flows and lahars leading to partial destruction of the summit domes. During the past several thousand years, eruptions of the volcanoes in the Ruiz–Tolima massif have mostly been small, and the pyroclastic flow deposits have been much less voluminous than during the Pleistocene. Since the volcano's earlier eruptions are not recorded, volcanologists have used tephrochronology to date them.During recorded history, eruptions have consisted primarily of a central vent eruption (in the caldera) followed by an explosive eruption, then lahars. Ruiz's earliest identified Holocene eruption was about 6660 BC, and further eruptions occurred in 1245 BC ± 150 years (dated through radiocarbon dating), about 850 BC, 200 BC ± 100 years, 350 AD ± 300 years, 675 AD ± 50 years, in 1350, 1541 (perhaps), 1570, 1595, 1623, 1805, 1826, 1828 (perhaps),[b] 1829, 1831, 1833 (perhaps),[b] 1845, 1916, December 1984 – March 1985, September 1985 – July 1991, and possibly in April 1994.[b] Many of these eruptions involved a central vent eruption, a flank vent eruption, and a phreatic (steam) explosion. Ruiz is the second-most active volcano in Colombia after Galeras.

Ex Output:
What partially collapsed, forming large (5–10 km wide) calderas?


Ex Input:
Passage: Since 1991, the anniversary of the massacre has been designated the National Day of Remembrance and Action on Violence Against Women, intended as a call to action against discrimination against women.  A White Ribbon Campaign was launched in 1991 by a group of men in London, Ontario, in the wake of the massacre, for the purpose of raising awareness about the prevalence of male violence against women, with the ribbon symbolizing "the idea of men giving up their arms." Commemorative demonstrations are held across the country each year on December 6 in memory of the slain women and numerous memorials have been built.
The Place du 6-Décembre-1989 in the Côte-des-Neiges/Notre-Dame-de-Grâce borough of Montreal was created as a memorial to the victims of the massacre. Located at the corner of Decelles Avenue and Queen Mary Road, a short distance from the university, it includes the art installation Nef pour quatorze reines (Nave for Fourteen Queens) by Rose-Marie Goulet. It is the site of annual commemorations on December 6.A memorial erected in Vancouver sparked controversy because it was dedicated to "all women murdered by men", which critics say implies all men are potential murderers. As a result, women involved in the project ironically received death threats and the Vancouver Park Board subsequently banned any future memorials that might "antagonize" other groups.The event has also been commemorated through references in television, theatre, and popular music. A play about the shootings by Adam Kelly called The Anorak was named as one of the best plays of 2004 by the Montreal Gazette.  Colleen Murphy's  play "December Man" was first staged in Calgary in 2007  The movie  Polytechnique, directed by Denis Villeneuve was released in 2009, and sparked controversy over the desirability of reliving the tragedy in a commercial film.  Several songs have been written about the events,  including "This Memory" by the folk duo the Wyrd Sisters,  and "6 December 1989" by the Australian singer Judy Small.In 2013, a new science building at John Abbott College was named in honour of Anne-Marie Edward, a victim of the massacre who attended the college before going on to university.
For the commemorative ceremony on the 25th anniversary of the massacre in 2014,  fourteen searchlights representing the 14 victims of the massacre were installed on the summit of Mount Royal and turned skyward at the exact time when the attack had started 25 years earlier.  Also in 2014, the Order of the White Rose was established, a $30,000 national scholarship for female engineering graduate students.  The selection committee was made up of presidents, principals and deans of engineering from several prestigious Canadian universities and chaired by Michèle Thibodeau-DeGuire, the first female graduate of École Polytechnique.

Ex Output:
What groups selection committee was made up of presidents, principals and deans of engineering from several prestigious Canadian universities?


Ex Input:
Passage: Sister Mary Bonaventure is in charge of the hospital ward of a convent in the county of Norfolk, England. She is troubled by her own sister's suicide, which she confides to her Mother Superior.
A torrential rain closes nearby roads, causing Sergeant Melling of the police to bring condemned murderer Valerie Carns there. She is being taken to prison.
Valerie was convicted of poisoning her brother Jason, a pianist. Jason's physician, Dr. Jeffreys, is head of the hospital where Sister Mary now works. Valerie still proclaims her innocence, but Jeffreys insists that she gave Jason a fatal overdose of his medicine.
A photograph of Jason clearly disturbs Isabel Jeffreys, the doctor's wife. He gives her a sedative. Valerie appeals to Sister Mary to bring her fiance, Sidney Kingham, to the convent to see her. A servant tells Sister Mary about the sadistic behavior of Jason Carns and produces a love letter to him, clearly written by Isabel.
Mother Superior is upset by Sister Mary's meddling. She burns the letter. The nun still intends to tell Melling the police sergeant what she knows.
Dr. Jeffreys is the one who gave Jason the fatal dose, and he might be slowly poisoning Isabel as well. He lures Sister Mary to a bell tower, where he attacks her. She rings the bell. Sidney hears it, rushes to her aid and overpowers Jeffreys, who is arrested by Melling.
Sister Mary's faith is restored, believing the rain that delivered Valerie to her to be divine intervention.

Ex Output:
Who did Dr. Jefferys give a fatal dose of poison to?