instruction:
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.
question:
Passage: Maiden Castle is an Iron Age hill fort 1.6 miles (2.6 km) south west of Dorchester, in the English county of Dorset. Hill forts were fortified hill-top settlements constructed across Britain during the Iron Age.
The earliest archaeological evidence of human activity on the site consists of a Neolithic causewayed enclosure and bank barrow. In about 1800 BC, during the Bronze Age, the site was used for growing crops before being abandoned. Maiden Castle itself was built in about 600 BC; the early phase was a simple and unremarkable site, similar to many other hill forts in Britain and covering 6.4 hectares (16 acres). Around 450 BC it was greatly expanded and the enclosed area nearly tripled in size to 19 ha (47 acres), making it the largest hill fort in Britain and, by some definitions, the largest in Europe. At the same time, Maiden Castle's defences were made more complex with the addition of further ramparts and ditches. Around 100 BC, habitation at the hill fort went into decline and became concentrated at the eastern end of the site. It was occupied until at least the Roman period, by which time it was in the territory of the Durotriges, a Celtic tribe.
After the Roman conquest of Britain in the 1st century AD, Maiden Castle appears to have been abandoned, although the Romans may have had a military presence on the site. In the late 4th century AD, a temple and ancillary buildings were constructed. In the 6th century AD the hill top was entirely abandoned and was used only for agriculture during the medieval period.
Maiden Castle has provided inspiration for composer John Ireland and authors Thomas Hardy and John Cowper Powys. The study of hill forts was popularised in the 19th century by archaeologist Augustus Pitt Rivers. In the 1930s, archaeologist Mortimer Wheeler and Tessa Verney Wheeler undertook the first archaeological excavations at Maiden Castle, raising its profile among the public. Further excavations were carried out under Niall Sharples, which added to an understanding of the site and repaired damage caused in part by the large number of visitors. Today the site is protected as a Scheduled Ancient Monument and is maintained by English Heritage.
answer:
Who currently maintains Maiden Castle?


question:
Passage: Electra Heart debuted at number one on the UK Albums Chart with first-week sales of 21,358 copies. It became Diamandis' first chart-topping album in the United Kingdom, although it was additionally distinguished as the lowest-selling number-one record of the 21st century in the country. It was later surpassed by Write It on Your Skin by Newton Faulkner, which debuted at number one on the UK Albums Chart with first-week sales of 16,647 copies three months later. On 15 April 2016, Electra Heart was certified gold by the British Phonographic Industry for exceeding shipments of 100,000 units in the United Kingdom. The record additionally reached number one on both the Irish Albums Chart and the Scottish Albums Chart; it was recognised with a gold certification in the former territory by the Irish Recorded Music Association (IRMA).Electra Heart performed moderately on additional record charts in Europe. The record peaked at number 11 on the Swiss Hitparade, and reached number 17 on the German Media Control Charts. It charted at number 25 on the Ö3 Austria Top 40, number 30 on the Norwegian VG-lista, and number 41 on the Swedish Sverigetopplistan. The album reached the lower ends of the Dutch MegaCharts and the Belgian Ultratop in Wallonia, respectively peaking at numbers 92 and 132 in each region. However, it reached number 31 on the Official New Zealand Music Chart and number 32 on the Australian ARIA Albums Chart in Oceania.Electra Heart debuted at number 31 on the US Billboard 200, and reached number two on the Billboard Dance/Electronic Albums component chart. It had sold 150,000 copies in the United States as of May 2015. On 13 April 2019, the album was certified gold by the Recording Industry Association of America (RIAA), denoting shipments in excess of 500,000 units in the United States. Elsewhere in North America, the record peaked at number 50 on the Canadian Albums Chart. In August 2012, Diamandis commented that she believed consumers in the United Kingdom had misinterpreted her comical effort with a perceived abandonment of her original musical inspiration, thus resulting in a relative underperformance in the country. In contrast, she felt that her American audience was more receptive of Electra Heart and her evolving public image.As of 2015, three million singles had been sold from Electra Heart.
answer:
What is the name of the artist that had their album be certified gold on 15 April 2016?


question:
Passage: So Dark the Night is the story of a detective, Henri Cassin from Paris, who, while on a long overdue vacation, falls in love with innkeeper Pierre Michaud's daughter Nanette. She is a country girl with a jealous boyfriend. Nonetheless, the detective becomes engaged to her. Then, the night of her engagement party, the girl vanishes and later turns up dead. Cassin believes that the obvious suspect is Leon, the old boyfriend, but soon he is also found killed. Soon after Mama receives a warning that she will be the next to die, she is found strangled.
Pierre, fearing for his safety, decides to sell the inn. Henri returns to Paris and, because of his investigative skill, he is able to come up with a sketch of the killer by expanding and elaborating on information provided by a footprint found beside Leon's body. 
To Henri's astonishment, the sketch bears the exact likeness of himself, and when he fits his shoe into the footprint, he realizes that he is undoubtedly the killer. After making a full confession to the police commissioner, Henri is evaluated by a psychiatrist, who determines that he is schizophrenic. Though placed under watch of a guard, Henri escapes back to St. Margot, where he tries to strangle Pierre. However, the police commissioner, who has followed Henri to the village, catches the detective in the act and shoots him.
answer:
Who vanishes and turns up dead?