Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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.
Solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Reason: 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.

Now, solve this instance: Passage: Based on studies of morphology, the bluebuck has historically been classified as either a distinct species or as a subspecies of the roan antelope. After its extinction, some 19th-century naturalists began to doubt its validity as a species, with some believing the museum specimens to be small or immature roan antelopes, and both species were lumped together under the name A. leucophaeus by the English zoologist George Robert Gray in 1821. The Austrian zoologist Franz Friedrich Kohl pointed out the distinct features of the bluebuck in 1866, followed by Sclater and Thomas, who rejected the synonymy in 1899.In 1974 the American biologist Richard G. Klein showed (based on fossils) that the bluebuck and roan antelope occurred sympatrically on the coastal plain of the southwestern Cape from Oakhurst to Uniondale during the early Holocene, supporting their status as separate species. In 1996 an analysis of mitochondrial DNA extracted from the bluebuck specimen in Vienna showed that it is outside the clade containing the roan and sable antelopes. The study therefore concluded that the bluebuck is a distinct species, and not merely a subspecies of the roan antelope as was supposed. The cladogram below shows the position of the bluebuck among its relatives, following the 1996 analysis:.
Student:
What two species were lumped together under the name A. leucophaeus?