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: Of the main characters, only Otho is not morally contemptible. Agrippina is an unscrupulous schemer; Nero, while not yet the monster he would become, is pampered and hypocritical; Claudius is pompous, complacent, and something of a buffoon, while Poppaea, the first of Handel's sex kittens, is also a liar and a flirt. The freedmen Pallas and Narcissus are self-serving and salacious. All, however, have some redeeming features, and all have arias that express genuine emotion. The situations in which they find themselves are sometimes comic, but never farcical—like Mozart in the Da Ponte operas, Handel avoids laughing at his characters.In Agrippina the da capo aria is the musical form used to illustrate character in the context of the opera. The first four arias of the work exemplify this: Nero's "Con raggio", in a minor key and with a descending figure on the key phrase "il trono ascenderò" ("I will ascend the throne") characterises him as weak and irresolute. Pallas's first aria "La mia sorte fortunata", with its "wide-leaping melodic phrasing" introduces him as a bold, heroic figure, contrasting with his rival Narcissus whose introspective nature is displayed in his delicate aria "Volo pronto" which immediately follows. Agrippina's introductory aria "L'alma mia" has a mock-military form which reflects her outward power, while subtle musical phrasing establishes her real emotional state. Poppaea's arias are uniformly light and rhythmic, while Claudius's short love song "Vieni O cara" gives a glimpse of his inner feelings, and is considered one of the gems of the score.
Student:
What are the names of the characters who are considered morally contemptible?