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: In 1916, childhood best friends, Bob Wilson and Fred von Bergen, are test pilots working for an American company that builds bombers for the European allies. Since he is German-born and faces prejudice against his heritage, Fred loses his job and, unable to find other employment, decides to return to Germany to fight for his homeland. Although he has no special attachment to the German cause, Bob quits the aviation company and joins his friend in Germany. 
On their way to a German airfield, Red Cross nurse Alida Hoffman accidentally runs Bob and Fred off the road, Both men are immediately drawn to Alida, especially Bob although Fred is more shy. After Bob's first unsuccessful mission, Captain Wolters, the squadron's tyrannical leader, expresses his doubt about his loyalty but, desperate for pilots, gives him another chance. 
As the United States is drawn into the war, instead of sending him into a crucial air battle, Wolters arrests Bob. Fred, heartbroken that Alida has chosen Bob, quarrels with his friend, calling him a coward. Later, however, Fred allows his friend to escape from a firing squad and flee to the Allied lines. 
To prove his allegiance, Bob leads British bombers to the German base, while Fred is told by Wolters that he must shoot down Bob to prove his loyalty. Neither man is capable of killing the other, and, in the end, Fred sacrifices his life for Bob. After the war, Bob returns to Germany to marry Alida. The newly married couple then returns to the United States, and pay their respects to Fred's mother.
What is the first name of the man that is fired for being German-born?

Passage: As three US servicemen – Marine Private First Class Ira Hayes, Private First Class Rene Gagnon, and Navy Corpsman John "Doc" Bradley – are feted as heroes in a war bond drive, they reflect on their experiences via flashback.
After training at Camp Tarawa in Hawaii, the 28th Marine Regiment 5th Marine Division sails to invade Iwo Jima. The Navy bombards suspected Japanese positions for three days. Sergeant Mike Strank is put in charge of Second Platoon.
The next day, February 19, 1945, the Marines land in Higgins boats and LVTs. The beaches are silent and Private First Class Ralph "Iggy" Ignatowski wonders if the defenders are all dead before Japanese heavy artillery and machine guns open fire on the advancing Marines and the Navy ships. Casualties are heavy, but the beaches are secured.
Two days later, the Marines attack Mount Suribachi under a rain of Japanese artillery and machine gun fire, as the Navy bombards the mountain. Doc saves the lives of several Marines under fire, which later earns him the Navy Cross. The mountain is eventually secured.
On February 23, the platoon under command of Sergeant Hank Hansen reaches the top of Mount Suribachi and hoists the United States flag to cheers from the beaches and the ships. Secretary of the Navy James Forrestal, who witnesses the flag raising as he lands on the beach, requests the flag for himself. Colonel Chandler Johnson decides his 2nd Battalion deserves the flag more. Rene is sent up with Second Platoon to replace the first flag with a second one for Forrestal to take. Mike, Doc, Ira, Rene, and two other Marines (Corporal Harlon Block and Private First Class Franklin Sousley) are photographed by Joe Rosenthal as they raise the second flag.
On March 1, the Second Platoon is ambushed from a Japanese machine gun nest. During the fight over the nest, Mike is hit by a U.S. Navy shell and dies from his wounds. Later that day, Hank is shot in the chest and dies, and Harlon is killed by machine gun fire.
What are the full names of the men who raise the second flag on Mount Suribachi?

Passage: The year is 1990. Space travel is well-established since humans first landed on the Moon twenty years earlier. At the International Institute of Space Technology, communications expert and astronaut Laura James monitors strange signals being received from outer space. Laura's superior, Dr. Farraday, translates the signal and discovers that it is from an alien race, who are sending an ambassador to Earth. Soon after, however, Laura receives a video log showing that the aliens' starship has crash-landed on Mars.
The Institute launches a rescue mission aboard the spaceship Oceano, which includes Laura and astronauts Anders Brockman and Paul Grant. Oceano travels through a sunburst, suffering some damage, before completing the journey to Mars and locating the downed alien craft. Anders and Paul investigate and discover a single dead alien aboard. Faraday deduces that the surviving crew may have been rescued, so an observation satellite will be needed to locate the alien rescue ship. Laura's fiancé Allan and fellow astronaut Tony volunteer. They travel on the spaceship Meteor to Phobos, one of the two moons of Mars, where they launch the observation satellite. Tony finds an alien spaceship on Phobos. He and Allan are able to enter, finding an unconscious but still-living female alien. As their rescue ship holds only two, one of them must stay behind, so they toss a coin and Tony stays.
Allan and the female alien arrive on Oceano, joining Laura, Paul and Anders. The alien regains consciousness and smiles at the three men, but not Laura. The alien refuses to eat all food offered and will not let Anders take a blood sample. That night, as Paul is guarding the alien, she attacks and kills him, draining his blood after first hypnotizing him. The surviving astronauts decide to keep her alive by feeding her blood from the ship's plasma supply. When this supply runs out, she kills Anders and feeds on him, leaving Laura and Allan the only humans aboard.

What are the first names of the people that have a coin toss?