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.

[Q]: Passage: The whale ear has specific adaptations to the marine environment. In humans, the middle ear works as an impedance equalizer between the outside air's low impedance and the cochlear fluid's high impedance. In whales, and other marine mammals, there is no great difference between the outer and inner environments. Instead of sound passing through the outer ear to the middle ear, whales receive sound through the throat, from which it passes through a low-impedance fat-filled cavity to the inner ear. The whale ear is acoustically isolated from the skull by air-filled sinus pockets, which allow for greater directional hearing underwater. Odontocetes send out high frequency clicks from an organ known as a melon. This melon consists of fat, and the skull of any such creature containing a melon will have a large depression. The melon size varies between species, the bigger the more dependent they are of it. A beaked whale for example has a small bulge sitting on top of its skull, whereas a sperm whale's head is filled up mainly with the melon.The whale eye is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a whale are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When belugas surface, their lens and cornea correct the nearsightedness that results from the refraction of light; they contain both rod and cone cells, meaning they can see in both dim and bright light, but they have far more rod cells than they do cone cells. Whales do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for colour vision than most mammals. Most whales have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a  tapetum lucidum; these adaptations allow for large amounts of light to pass through the eye and, therefore, a very clear image of the surrounding area. They also have glands on the eyelids and outer corneal layer that act as protection for the cornea.The olfactory lobes are absent in toothed whales, suggesting that they have no sense of smell. Some whales, such as the bowhead whale, possess a vomeronasal organ, which does mean that they can "sniff out" krill.Whales are not thought to have a good sense of taste, as their taste buds are atrophied or missing altogether.  However, some toothed whales have preferences between different kinds of fish, indicating some sort of attachment to taste. The presence of the Jacobson's organ indicates that whales can smell food once inside their mouth, which might be similar to the sensation of taste.
[A]: What is the name of the organ in the mouth of the animals that have slightly flattened eyeballs that allows them to smell in their mouths?


[Q]: Passage: Motivated by a variety of reasons from college tuition support, to a sense of purpose, best friends Dominic and Cole join the Army National Guard after graduating from their rural high school.  After persuading several of their friends to join them, the young men are sent to Afghanistan as part of the 107th Engineer Battalion, 168th Engineer Brigade, where they are tasked with searching for roadside bombs in order to keep roads safe for other troops.  By the time their deployment ends, they are no longer the carefree group of friends they were before enlisting; repeated bombs blasts around their convoys have led to TBI symptoms, and they have become increasingly disillusioned about their mission.
Coming home is no relief as they are now confronted with the silent war wounds of PTSD and TBI. The soldiers struggle with reintegration with society and some miss the simplicity in life they had while in Afghanistan. The latter half of the documentary focuses on their struggles on the home front and how each of them, and their families try to return to normal life.
[A]: Who is sent to Afghanistan?


[Q]: Passage: In 1915 Berlin, the German high command is worried about ally Turkey. Recent British attacks on the vital Dardanelles shows signs of inside knowledge. Von Sturm, the head of German intelligence, is ordered to find out if Ali Bey, the Turkish commander of the region, is the traitor.
As his best agent has not been heard from in several weeks, von Sturm assigns Kruger the task. Shortly afterwards, Annemarie, known by the code name "Fräulein Doktor", returns after completing her mission. She also informs von Sturm that fellow spy Mata Hari has fallen in love and therefore can no longer be trusted. She recommends that an incriminating message be sent using a code that she knows has been broken by the Allies. In addition, she uncovers Kruger as a British double agent known as K-6.
When Kruger is arrested at his dentist contact's office, another patient, American medical student Douglas Beall, is also taken into custody, though he is later released. Just to be sure though, von Sturm orders Annemarie to make sure Beall is innocent. She arranges to be rescued from an unwanted "suitor" by Beall, who invites her to his hotel suite. During the course of the evening, he confesses he has fallen in love with her, now going by the name Helena Bohlen. Helena is attracted to him, but when she reads a coded message from von Sturm informing her that he has taken her advice regarding Mata Hari, she abruptly leaves.
Beall persists however. When Helena boards the train to Constantinople, he follows her on the spur of the moment and continues courting her, despite her half-hearted attempts to discourage him. Her assistant Karl watches with growing concern. As they near the Turkish border, she orders Karl to return to Germany so Beall can use his visa.
[A]:
What is the name of the person whose best agent has not been heard from in weeks?