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: John Ottway works in Alaska as a marksman for an undisclosed oil company, killing grey wolves that threaten the drillers. On his last day on the job, he sees a driller  being pursued by a wolf and shoots it. He then watches and listens as the wolf takes a final breath ending in a long deep exhale. That evening, Ottway writes a letter "without purpose" to his wife, Ana, explaining his plans to commit suicide. He hears a distant wolf howl and doesn't follow through.
The next day, Ottway and other oil drillers board a plane. During the flight, Ottway dreams of sleeping with his wife in bed but is awakened by a loud bang. He buckles up in fear of a possible plane crash. Shortly afterwards, the back of the plane is torn off and it crashes. Eight people including Ottway survive the crash. However, a young oil worker, Lewenden, dies of his injuries as Ottway sadly watches. Taking charge, Ottway sets the survivors on the task of building a fire. While doing this, he discovers a corpse, and is attacked by the grey wolf feeding on it. After saving Ottway, the group soon surmises that they are in the wolves' territory. They decide to take turns keeping watch for the predators.
Later, Hernandez is killed by two wolves. Ottway suggests they leave the crash site, but Diaz questions his leadership. While searching for the wallets of their deceased colleagues, intending to return them to their families, Diaz finds an emergency wrist watch containing a radio beacon. The group then leaves the site. 
Question: What is the last name of the person attacked by a grey wolf that was feeding on a corpse?

SOLUTION: Ottway.

PROBLEM: Passage: As Greeneville ascended to periscope depth, Waddle checked the sonar displays and the fire control station monitors, but reported later that he heard and saw nothing to suggest that the previously detected vessels in the area were now any closer to the submarine's position than had been reported before the submarine began the high speed maneuvers. Because the AVSDU was not working, Greeneville's executive officer, Lieutenant Commander Gerald K. Pfeifer, entered the sonar room and observed the contacts on the sonar screens.  Pfeifer then stood in the doorway between the sonar and control rooms, but did not communicate any updated sonar information to Waddle in the control room.  At 13:34, sonar gained a new contact, designated S-14.  Because Greeneville had not maintained a steady, slow course for a sufficient amount of time, the sonar data available to the Fire Control Technician of the Watch did not allow  accurate determination on Ehime Maru's range or course.  Also, due to time constraints placed by Waddle, the ship did not perform normal maneuvers which would be used to obtain accurate course and range information on the sonar contacts prior to proceeding to periscope depth.At 13:38, Greeneville reached periscope depth (about 60 feet (18 m) below the surface).  At this time, Ehime Maru was about 2,315 yards (2.117 km) or 1.14 nautical miles (2.1 km) away from the submarine and heading in her direction.  Although sonar data began to more accurately depict Ehime Maru's true range and bearing at this point, this was not evident to the sonar operators.  Lieutenant, Junior Grade Michael J. Coen, the officer of the deck, conducted an initial low  magnification periscope search of the area and sighted no nearby ships.  
Waddle then took the periscope before Coen could complete the normal high magnification search.  Since waves were washing over the periscope, Waddle ordered the submarine to go up another few feet to increase the distance the periscope can view.  Waddle then looked through the periscope at the area where he believed the reported surface contacts to be (possibly in error).  Although Ehime Maru was at this point heading toward Greeneville's location, Waddle failed to see the ship.  Regulations mandated that Waddle conduct a three-minute, 360-degree periscope scan before executing the emergency main ballast blow maneuver.  Waddle, however, aware that they were still behind schedule, conducted a short scan, searching primarily in the sector where he believed
the known contacts were located, noted that the haze was still present, and saw no ships in the vicinity.  At the end of his scan, Waddle announced to the control room crew, "I hold no visual contacts." Waddle later explained how he conducted his periscope search:. 
Question: What is the first name of the person who didn't finish the normal high magnification search before Waddle took the periscope?

SOLUTION: Michael.

PROBLEM: Passage: Carl Schaffner is a crooked British (previously German) businessman who flees to Mexico after stealing company funds. While travelling by train, Schaffner decides to evade authorities. He drugs and switches identities with fellow train passenger Paul Scarff, who looks like him and has a Mexican passport. He throws Paul Scarff off the train, injuring Scarff. Carl later discovers that Scarff is wanted in Mexico as a political assassin. Carl then tracks down Scarff, who is resting from his injuries, to get back his original passport. Carl arrives in Mexico and is captured by the local police, who mistake him for Scarff. Carl then fights to show his true identity to the local police.  The plan seems foolproof until he is forced to care for the dog of Scarff's dog. The local police chief and Scotland Yard inspector Hadden conspire to keep him trapped in the Mexican border town of Katrina in an effort to get him to cross the bridge back into the U.S. and face justice. The misanthropic Schaffner has grown attached to Scarff's pet spaniel and is tricked into going across the dividing line of the bridge to get the dog. He is accidentally killed trying to escape the authorities. The final irony is that the discovery of his own humanity has cost the cynical, friendless Schaffner his life. 
Question: What is the last name of the person who switches identities with Paul?

SOLUTION:
Schaffner.