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.
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.
Example solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Example 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.

Problem: Passage: The First Anglo-Dutch War (1652–54) saw the development of the line of battle, a tactic where ships formed a continuous line to fire broadsides at an enemy. Previously, naval tactics had favored short-range firepower and boarding with intent to take prizes. After the mid-17th century, tactics shifted from close-quarter fighting to disabling or sinking opponents through superior, long-distance firepower. This entailed major changes in doctrine, shipbuilding, and professionalism in European navies from the 1650s onwards. The line of battle favored large ships that were heavily armed and robust enough to hold the line in the face of enemy fire. The increased centralization and concentration of power in the emerging nation-states during the late 17th century allowed for a great expansion of armies and navies, and new government shipyards began building much much larger ships. Sweden embarked on an expansive shipbuilding program in the late 1660s.Kronan was one of the most heavily armed warships in the world in 1672 when she was launched, a three-decker with 110 guns. The ship had three full gundecks with guns from bow to stern. Altogether there were seven separate levels, divided by six decks. Furthest down in the ship, above the keel, was the hold, and immediately above it, but still below the waterline, lay the orlop; both were used primarily for storage. Above the orlop were the three gundecks, two of them covered, while about half of the topmost gundeck was open to the elements in the ship's middle, or waist. The bow had one deck, making up the forecastle, and the stern had two decks, including a poop deck.
Solution: What is the name of the ship that had two covered gun decks?