TASK DEFINITION: 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.
PROBLEM: Passage: There is considerable uncertainty about the identities of the Grand Dukes of Lithuania between Traidenis' death in 1282 and Vytenis' assumption of power in 1295. This is in part because the two main sources for Lithuanian history in the 13th century, the Hypatian Codex and the Livonian Rhymed Chronicle, end in the early 1290s. In 1285, one chronicle mentions Daumantas as Grand Duke. He attacked the Bishop of Tver and was severely wounded or even killed in the battle. However, that is the only information about him.
The Gediminid dynasty began its ascent in Lithuania during this time with the emergence of its first leader, Butigeidis. In 1289, leading about 8,000 troops, he attacked Sambia. In 1289 the Teutonic Knights built a castle in present-day Sovetsk (Tilsit) and their raids intensified. Butigeidis was the first to build strong castles along the Neman River. He died in 1290 or 1292, and his brother Butvydas (also known as Pukuveras) inherited the crown. Butvydas was the father of Vytenis and probably of Gediminas. During his short reign Butvydas tried to defend the duchy against the Teutonic Knights; he also attacked Masovia, an ally of the knights. His son, Vytenis, advanced to power in 1295 and ended the period of relative instability. His reign marks the transition from the state's establishment to the point at which it was poised for expansion. 
Question: What is the alias of the person that inherited the crown from Butigeidis?

SOLUTION: Pukuveras.

PROBLEM: Passage: In 1933, a child orphaned during the Ukrainian Holodomor runs away from his orphanage and is taken in by a Red Army unit and adopted by its kindly commander, who gives him the name Leo Demidov. In 1945, now a sergeant with the unit, Leo  becomes an icon across the Soviet Union when he is photographed planting the Soviet flag atop the Reichstag during the Battle of Berlin. He becomes a Hero of the Soviet Union.
In 1953, Leo, now married to Raisa and living in Moscow, is a captain in the Ministry of State Security, commanding a unit tasked with tracking down and arresting dissidents. They arrest a veterinarian, Anatoly Brodsky, and during the arrest, one of Leo's subordinates, the cowardly but ambitious Vasili Nikitin, shoots a farmer, Semyon Okun, and his wife in whose barn Brodsky has been hiding, orphaning their two young daughters. Angry, Leo strikes Vasili, who harbours growing resentment against Leo and the other officer in the unit, Alexei Andreyev; all three were in Berlin together in 1945. Vasili is in charge of Brodsky's interrogation and execution, and one of the names he gives to their superior, Major Kuzmin, is that of Raisa, a primary school teacher, several of whose colleagues have recently been arrested for dissident views. Kuzmin orders Leo to investigate his own wife.
Meanwhile, Alexei's young son, Jora, is found dead near a railway yard. Although the initial pathology report shows injuries consistent with torture, the surgically precise removal of organs, and drowning, the authorities declare that he was hit by a train, as Stalin has decreed that murder is a capitalist disease; there is no murder in a communist paradise. Alexei is forced to accept the official conclusions to save himself and the rest of his family. 
Question: What is the profession of the man that the person in Leo's unit interrogates?

SOLUTION: veterinarian.

PROBLEM: Passage: The pilot David Randall flies top-secret photographs from the South African astronomer Dr. Emery Bronson to Dr. Cole Hendron in America. Hendron, with the assistance of his daughter Joyce Hendron, confirms their worst fears: Bronson has discovered that a rogue star named Bellus is on a collision course with Earth.
Hendron warns the United Nations that the end of the world is little more than eight months away. He pleads for the construction of "arks" to transport a lucky few to Zyra, the sole planet orbiting Bellus, in the faint hope that the human race can be saved from extinction. Other scientists scoff at his claims, and he receives no support from the delegates.
Hendron receives help from wealthy humanitarians, who arrange for a lease on a former proving ground to build an ark. To finance the construction, Hendron is forced to accept money from the wheelchair-bound business magnate Sidney Stanton. Stanton demands the right to select the passengers, but Hendron insists that he is not qualified to make those choices; all he can buy is a seat aboard the ark.
Joyce, attracted to Randall, persuades her father into keeping him around, much to the annoyance of her boyfriend, Dr. Tony Drake. As Bellus nears, former skeptics admit that Hendron was right and governments prepare for the inevitable. Groups in other nations begin to build their own spaceships. Martial law is declared, and residents in coastal regions are evacuated to inland cities.
Zyra makes a close approach first, causing massive earthquakes, volcanic eruptions, and tidal waves that wreak havoc around the world. Several people are killed at the ark's construction camp, including Dr. Bronson. Afterward, Drake and Randall travel by helicopter to drop off supplies to people in the surrounding area. When Randall gets off to rescue a little boy stranded on a roof in a flooded area, Drake flies away, but then he changes his mind and returns. 
Question: What is the full name of the person whose claim other scientists scoff at?

SOLUTION:
Dr. Emery Bronson.