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.

Passage: In mid-1917 nine-year-old Frances Griffiths and her mother—both newly arrived in the UK from South Africa—were staying with Frances' aunt, Elsie Wright's mother, in the village of Cottingley in West Yorkshire; Elsie was then 16 years old. The two girls often played together beside the beck (stream) at the bottom of the garden, much to their mothers' annoyance, because they frequently came back with wet feet and clothes. Frances and Elsie said they only went to the beck to see the fairies, and to prove it, Elsie borrowed her father's camera, a Midg quarter-plate. The girls returned about 30 minutes later, "triumphant".Elsie's father, Arthur, was a keen amateur photographer, and had set up his own darkroom. The picture on the photographic plate he developed showed Frances behind a bush in the foreground, on which four fairies appeared to be dancing. Knowing his daughter's artistic ability, and that she had spent some time working in a photographer's studio, he dismissed the figures as cardboard cutouts. Two months later the girls borrowed his camera again, and this time returned with a photograph of Elsie sitting on the lawn holding out her hand to a 1-foot-tall (30 cm) gnome. Exasperated by what he believed to be "nothing but a prank", and convinced that the girls must have tampered with his camera in some way, Arthur Wright refused to lend it to them again. His wife Polly, however, believed the photographs to be authentic.
Towards the end of 1918, Frances sent a letter to Johanna Parvin, a friend in Cape Town, South Africa, where Frances had lived for most of her life, enclosing the photograph of herself with the fairies. On the back she wrote "It is funny, I never used to see them in Africa. It must be too hot for them there."The photographs became public in mid-1919, after Elsie's mother attended a meeting of the Theosophical Society in Bradford. The lecture that evening was on "fairy life", and at the end of the meeting Polly Wright showed the two fairy photographs taken by her daughter and niece to the speaker. As a result, the photographs were displayed at the society's annual conference in Harrogate, held a few months later. There they came to the attention of a leading member of the society, Edward Gardner. One of the central beliefs of theosophy is that humanity is undergoing a cycle of evolution, towards increasing "perfection", and Gardner recognised the potential significance of the photographs for the movement:
the fact that two young girls had not only been able to see fairies, which others had done, but had actually for the first time ever been able to materialise them at a density sufficient for their images to be recorded on a photographic plate, meant that it was possible that the next cycle of evolution was underway.
What are the full names of the girls who had taken the photographs that Polly Wright showed at the meeting?

Passage: The open waters are inhabited by fishes, molluscs and crustaceans living on sea grasses or who prey on each other. The shallowness of the lagoon makes it suitable habitat for diving birds such as anhinga, cormorants and diving ducks. The bay also provides habitat for juvenile sea animals that have left the shelter of the mangrove belts.  Manatees frequent the quiet waters of the bay. The bay has a year-round population of double-crested cormorants. Winter residents include northern gannets, American white pelicans and common loons. The bay also has a resident population of common bottlenose dolphins.Biscayne Bay is a shallow lagoon with little vertical density or salinity gradient due to its lack of depth. Instead of a vertical gradient, the bay shows a horizontal density gradient, with fresh water entering from the drainage canals on the west side and seawater entering through gaps in the keys and through the safety valve section of shoals. Bay salinity reaches a peak in June. Changes in the salinity pattern of the bay have had negative effects on formerly abundant species such as red drum. Biscayne Bay and Florida Bay are major nurseries for red grouper and gray snapper. The bottom of the lagoon hosts sponges and soft corals in places where grasses cannot not grow. Three primary species of seagrass are found in the park: turtlegrass, shoal grass and manatee grass. The endangered Johnson's seagrass is also found in small quantities in the bay, which is at the southern end of the grass's range. Roughly 75 percent of the central bay floor is covered by grasses. Scarring of seagrass beds by vessel groundings or propellers is a significant problem. About 200 such incidents are documented each year, with full re-growth requiring up to 15 years. The bay is also affected by commercial shrimp trawling, which is permitted in park waters.  The passage of roller-frame trawl nets does not harm grasses, but damages soft corals and sponges.
What is the name of the entity that provides habitat for juvenile sea animals that have left the shelter of the mangrove belts?

Passage: Adventurer Johnny Weissmuller is roped in by Egyptian archaeologist Ellen Marsten to traverse the African jungle of Baku. They seek to rescue an acquaintance, Marro, from his captors, pygmies known as the "Moon Men". The Moon Men are devoted to a "Moon Goddess" Oma, who is apparently an immortal whose only weakness is sunlight. Marro is chosen to be Oma's chief religious official.
After being joined by Marsten's friend Bob Prentice, the team of Weissmuller, Marstern, and Prentice, set off for Baku. They find Marro and urge him to escape. However, he dies the moment he steps outside the parameters of the jungle. Interrogating a pygmy Damu, Weissmuller learns that Marro was fed a voodoo potion that would kill him once he tried to escape Baku. Just then, the Moon Men overpower the team and capture them. Prentice is selected to take over Marro's position, while Weissmuller and Marstern are brought to Oma's temple.
There, they are stopped by Santo and his right-hand man Max (Frank Sully). The evil duo command Weissmuller to lead them into the temple. They meet Oma and also find loads of precious stones in the building. Knowing that not everybody can leave Baku, Weissmuller sacrifices himself for the rest. He asks Prentice to contact the police as soon as he gets to the mainland. Santo pockets a large amount of the jewels and turns to flee. The Moon Men stop him, letting loose a pride of vicious lions. Santo and Max are gorily killed, while the rest manage to escape.

Who is the acquaintance of Ellen and Johnny forced to serve?