Part 1. Definition
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.
Part 2. Example
Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Answer: Who believes Fagin's gang make wallets and handkerchiefs?.
Explanation: This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.
Part 3. Exercise
Passage: Jim is a promising young English merchant seaman who rises to first officer under Captain Marlow. However, Jim is injured and left at Java. When he is fit again, he signs on with the first available ship, a dilapidated freighter called the S.S. Patna, crammed with hundreds of Muslims on pilgrimage to Mecca. When a storm threatens the leaking ship, the crew panics and takes to the lifeboats, abandoning their passengers; in a moment of weakness Jim joins them.
When they reach port, the sailors are stunned to find an intact Patna already there before them. The rest of the crew disappears, but Jim insists on confessing his guilt at an official inquiry and is stripped of his sailing papers. Filled with self-loathing, Jim becomes a drifter.
One day, he saves a boatload of gunpowder from sabotage. Stein, the cargo's owner, offers him an extremely dangerous job: transporting it and some rifles by river to distant Patusan to help Stein's old friend, the town's chief, lead an uprising against bandits led by the General.
When Schomberg is bribed to deny Stein the use of the motorboat he had promised, Jim takes a sailboat with two native crewmen, leaving the aged Stein behind. As they near their destination, one of the crewmen reveals himself to be working for the General. He kills the other sailor then flees to warn the warlord. Jim manages to hide the cargo before he is captured.
Though tortured, he refuses to divulge the location. This surprises Cornelius, the drunken, cowardly agent of Stein's trading company, who in fact obeys the General. That night, the Girl leads Jim's rescue.
Answer:
What is the name of the crewman that  kills the other sailor then flees to warn the warlord?