In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

[Q]: Passage: The building was sold in 1549 by Buonaccorso Pitti, a descendant of Luca Pitti, to Eleonora di Toledo.  Raised at the luxurious court of Naples, Eleonora was the wife of Cosimo I de' Medici of Tuscany, later the Grand Duke.  On moving into the palace, Cosimo had Vasari enlarge the structure to fit his tastes; the palace was more than doubled by the addition of a new block along the rear.  Vasari also built the Vasari Corridor, an above-ground walkway from Cosimo's old palace and the seat of government, the Palazzo Vecchio, through the Uffizi, above the Ponte Vecchio to the Palazzo Pitti. This enabled the Grand Duke and his family to move easily and safely from their official residence to the Palazzo Pitti. Initially the Palazzo Pitti was used mostly for lodging official guests and for occasional functions of the court, while the Medicis' principal residence remained the Palazzo Vecchio. It was not until the reign of Eleonora's son Francesco I and his wife Johanna of Austria that the palazzo was occupied on a permanent basis and became home to the Medicis' art collection.Land on the Boboli hill at the rear of the palazzo was acquired in order to create a large formal park and gardens, today known as the Boboli Gardens. The landscape architect employed for this was the Medici court artist Niccolò Tribolo, who died the following year; he was quickly succeeded by Bartolommeo Ammanati. The original design of the gardens centred on an amphitheatre, behind the corps de logis of the palazzo. The first play recorded as performed there was Andria by Terence in 1476. It was followed by many classically inspired plays of Florentine playwrights such as Giovan Battista Cini. Performed for the amusement of the cultivated Medici court, they featured elaborate sets designed by the court architect Baldassarre Lanci. 
Question: What is the first name of the Grand Duke whose family was enabled to move easily and safely from their official residence?
[A]: Cosimo.


[Q]: Passage: Detective Mike Hoolihan is investigating the murder of Jennifer Rockwell, an astrophysicist at an observatory in New Orleans. She had presented a talk on black holes in the evening, but was found dead in the morning by the manager of the observatory. She had been shot in the face, but there was no weapon. There is a sock and a jar of moisturizing cream found at the scene.
The manager claims that he was out all night with an associate. The sock is traced to Jennifer's boyfriend, who claims he left hurriedly to work on a new theory.
Jennifer's home is full of tchotchkes and other old nick-nacks. Mike passes out when she picks up a Florida snow globe, and imagines unique blue marbles similar to one that is on a string around her neck. When she comes to, she talks about the marble, and how she doesn't remember where it came from. She was an orphan, and has always had it.
Her co-investigator and supervisor suggest that this looks like "The .38 Caliber Killer", who killed young women, but hadn't struck in many years. The murderer always exchanged nick nacks with his victims.
While doing a more detailed search of the area, Mike finds a gun in a case, and a red scarf she had been having dreams about. The gun, a .38 revolver, is traced to the observatory manager, who admits he found it, and tried to dispose of it so he wouldn't be a suspect.
Figuring from where the gun originally lay, Mike concludes that Jennifer had shot herself. The investigators agree.
In photos of the crime scene, Mike realizes that there are no photos of the jar of moisturizing cream that she noted. When she buys a jar of the cream, she reacts as if memories come flooding back. 
Question: What is the last name of the person who talks about the marble?
[A]: Hoolihan.


[Q]: Passage: Tomas, a successful brain surgeon in Communist Czechoslovakia, is pursuing an affair with Sabina, an equally care-free artist in Prague. Dr Tomas takes a trip to a spa town for a specialized surgery. There, he meets dissatisfied waitress Tereza, who desires intellectual stimulation. She tracks him down in Prague and moves in with him, complicating Tomas's affairs.
Tomas asks Sabina to help Tereza find work as a photographer. Tereza is fascinated and jealous as she grasps that Sabina and Tomas are lovers, but feels affection for Sabina. Nevertheless, Tomas marries Tereza, in a simple ceremony with both perpetually laughing, followed by her double standard distress about Tomas' promiscuity. Although she considers leaving Tomas, she becomes more attached to Tomas when the Soviet Army invades Czechoslovakia. Amidst the confusion, Tereza photographs demonstrations against the Soviet forces, then hands the rolls of film to foreigners to smuggle to the West. Facing the stultifying reality that replaced the Prague Spring, Tomas, Sabina and Tereza flee Czechoslovakia for Switzerland: first Sabina, then the hesitant Tomas and Tereza.
In Geneva, Sabina encounters Franz, a married university professor: they begin a love affair. After some time, he decides to abandon his wife and family for her. After hearing the declaration, Sabina abandons Franz, feeling he would emotionally weigh her down. Meanwhile, Tereza and Tomas attempt to adapt to Switzerland, whose people Tereza finds inhospitable. When she discovers that Tomas continues womanizing, she leaves him and returns to Czechoslovakia. Upset by her leaving, Tomas follows Tereza to Czechoslovakia, where his passport is confiscated, trapping him in-country: nevertheless, his return elates Tereza. They are re-united. 
Question: What is the name of the person that caused Franz to leave his family?
[A]:
Sabina.