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.

Passage: Dr. Henry Jekyll, a kind English doctor in Victorian London, is certain that within each man lurks impulses for both good and evil. He is desperately in love with his fiancée Muriel Carew and wants to marry her immediately. But her father, Brigadier General Sir Danvers Carew, orders them to wait. One night, while walking home with his colleague, Dr. John Lanyon, Jekyll spots a bar singer, Ivy Pierson, being attacked by a man outside her boarding house. Jekyll drives the man away and carries Ivy up to her room to attend to her. Ivy tries to seduce Jekyll but, though he is tempted, he leaves with Lanyon.
When Sir Danvers takes Muriel to Bath, Jekyll begins to experiment with drugs that he believes will unleash his evil side. After imbibing a concoction of these drugs, he transforms into Edward Hyde—an impulsive, violent, amoral man who indulges his every desire. Hyde finds Ivy in the music hall where she works. He offers to financially support her in return for her company. They stay at her boarding house where Hyde sexually abuses and psychologically manipulates her. When Hyde reads in the paper that Sir Danvers and Muriel are planning to return to London, Hyde leaves Ivy but threatens her that he'll return when she least expects it.
Overcome with guilt, Jekyll sends £50 to Ivy. On the advice of her landlady, Ivy goes to see Dr. Jekyll and recognizes him as the man who saved her from abuse that night. She tearfully tells him about her situation with Hyde, and Jekyll reassures her that she will never see Hyde again. But the next night, while walking to a party at Muriel's where the wedding date is to be announced, Jekyll spontaneously changes into Hyde. Rather than attend the party, Hyde goes to Ivy's room and murders her.
Who is with Henry Jekyll when he sees a woman needing help?

Passage: As of the 2010 U.S. census, the racial composition was as follows:
White: 63.8%
Black or African American: 18.6%
American Indian: 2.0%
Asian: 5.6% (1.9% Hmong, 0.9% Chinese, 0.7% Indian, 0.6% Korean, 0.4% Vietnamese, 0.3% Thai, 0.3% Laotian, 0.2% Filipino, 0.1% Japanese, 0.2% Other Asian)
Native Hawaiian/Pacific Islander: 0.1%
Other: 5.6%
Multiracial: 4.4%
Hispanic or Latino (of any race): 10.5% (7.0% Mexican, 1.3% Ecuadorian, 0.4% Puerto Rican, 0.3% Guatemalan, 0.2% Salvadoran, 1.3% Other Latino)White Americans make up about three-fifths of Minneapolis's population. This community is predominantly of German and Scandinavian descent. There are 82,870 German Americans in the city, making up over one-fifth (23.1%) of the population. The Scandinavian-American population is primarily Norwegian and Swedish. There are 39,103 Norwegian Americans, making up 10.9% of the population; there are 30,349 Swedish Americans, making up 8.5% of the city's population. Danish Americans are not nearly as numerous; there are 4,434 Danish Americans, making up only 1.3% of the population. Norwegian, Swedish, and Danish Americans together make up 20.7% of the population. This means that ethnic Germans and Scandinavians together make up 43.8% of Minneapolis's population, and make up the majority of Minneapolis's non-Hispanic white population. Other significant European groups in the city include those of Irish (11.3%), English (7.0%), Polish (3.9%), French (3.5%) and Italian (2.3%) descent. African Americans make up 18.6% of the city's population, with a large fraction hailing from Rust Belt cities such as Chicago and Gary, Indiana over the past three decades.
There are 10,711 individuals who identify as multiracial in Minneapolis: People of black and white ancestry number at 3,551, and make up 1.0% of the population. People of white and Native American ancestry number at 2,319, and make up 0.6% of the population. Those of white and Asian ancestry number at 1,871, and make up 0.5% of the population. Lastly, people of black and Native American ancestry number at 885, and make up 0.2% of Minneapolis's population.
As of 2010, what percentage of people in Minneapolis were American Indian?

Passage: At the court in Ferrara, a collection of ladies skilled in music inspired the composer Luzzasco Luzzaschi and caught the Duke's interest. This group, which led to the formation of the concerto delle donne, performed within the context of the Duke's musica secreta, a regular series of chamber music concerts performed for an exclusive audience. This preliminary group was originally made up of talented but amateur members of the court: the sisters Lucrezia and Isabella Bendidio, Leonora Sanvitale, and Vittoria Bentivoglio. They were joined by bass Giulio Cesare Brancaccio, who was specifically brought to the court in 1577 for his singing ability. The preliminary ensemble was active throughout the 1570s, and its membership solidified in 1577. Only later did professionals replace these original singers.
The Duke did not announce the creation of a professional, all-female ensemble; instead, the group infiltrated and gradually dominated the musica secreta, so that after the dismissal of Brancaccio for insubordination in 1583, no more male members of the musica secreta were hired. Even when Brancaccio was performing with the consort it was referred to as a ladies' ensemble, because women singing together was the most exciting aspect of the group. This new ensemble, the concerto delle donne, was created by Alfonso in part to amuse his young new wife, Margherita Gonzaga d'Este (she was only fourteen when they wed in 1579), and in part to help the Duke achieve his artistic goals for the court. According to Grana, a contemporary correspondent, "Signora Machiavella [Lucrezia], Signora Isabella, and Signora Vittoria have abandoned the field, having lost the backing of Luzzaschi". The first recorded performance by the professional ladies was on November 20, 1580; by carnival season in 1581, they were performing together regularly.This new "consort of ladies" was viewed as an extraordinary and novel phenomenon; most witnesses did not connect the second period of the concerto delle donne with the group of ladies who sang in the musica secreta. Today, however, the earlier group is viewed as a crucial part of the creation and development of the social and vocal genre of the concerto delle donne.
What were the first names of the two sisters in the original preliminary group?