Definition: In this task, five ordered key facts are given. All the given facts are expressed in natural language. Your job is to generate a story 100 to 1000 words long, that includes all the facts given as input in their order of appearance while expanding upon them to produce a broader, yet coherent, narrative.
Input: Fact1: United Nations UN has launched rocket flight to Moon, Fact2: multi-national group of astronauts in UN spacecraft land on Moon believing themselves to be first lunar explorers, Fact3: UN representatives question him about Moon, Fact4: Cavor which plans to use to travel to Moon, Fact5: ship still containing Kate has been dragged into underground city

In 1964, the United Nations UN has launched a rocket flight to the Moon. A multinational group of astronauts in the UN spacecraft land on the Moon, believing themselves to be the first lunar explorers. They discover a British Union Jack on the surface and a note naming Katherine Callender, claiming the Moon for Queen Victoria. Attempting to trace Callender, UN authorities find she has died, but find her husband Arnold Bedford now an old man in an old peoples home. The nursing home staff dont let him watch television reports of the expedition because, according to the matron, it excites him, dismissing his claims to have been on the Moon as an insane delusion. The UN representatives question him about the Moon and he tells them his story. The rest of the film, as a flashback, shows what Bedford and Professor Cavor did in the 1890s. In 1899, Arnold Bedford and his fiancee Katherine Callender – known as Kate – meet an inventor, Joseph Cavor, who has invented Cavorite, a substance that will let anything it is applied to or made of deflect the force of gravity and which he plans to use to travel to the Moon. Cavor has already built a spherical spaceship for this purpose, taking Arnold and accidentally Kate with him. While exploring the Moon, Bedford and Cavor fall down a vertical shaft and discover to their amazement an insectoid population, the Selenites, living beneath the surface. Cavor coins this name for the creatures after the Greek goddess of the moon, Selene. Bedford attacks a group of Selenites in fear  killing several, despite Cavors horrified protests. After escaping from the Selenites back to the surface, they discover that their ship, still containing Kate who stayed behind because Cavor had brought only two spacesuits, has been dragged into their underground city. The two, following the drag trail, find and enter the city. The city holds a breathable atmosphere, so they remove and leave their spacesuit helmets. Upon finding the living quarters, they are attacked by a giant caterpillarlike moon bull which pursues them until the Selenites find out and are able to kill it with their Tesla coillike electrical stun ray gun. Cavor and Bedford see the citys power station, powered by sunlight. In the end, they reach their ship underground. The Selenites quickly learn English and interrogate Cavor, who believes they wish to exchange scientific knowledge; this also leads up to Cavor having a discussion with the Grand Lunar, the ruling entity of the Selenites. Bedford, however, upon entering the chamber just as the Grand Lunar voices his concerns over human aggressiveness, makes the assumption that Cavor, and presumably all humanity, is on trial, attempts to kill the Grand Lunar with an elephant gun  failing due to Cavors attempts to stop him. Running for their lives, Bedford manages to find the sphere and escape, but Cavor stays voluntarily on the Moon. Bedford, along with Kate, flies the ship up a vertical shaft, shattering the window cover at the top, and back to Earth. The aged Bedford concludes his story by mentioning that the ship came down in the sea off Zanzibar, and sank, but he and Kate managed to swim ashore. Cavors ultimate fate remained unknown. Back in the present day, Bedford, the UN party and newspaper reporters watch on television the latest events on the Moon, where the UN astronauts have broken into the Selenite city and find it deserted and decaying. Moments later, the ruined city starts to crumble and collapse, forcing the landing crew to retreat hastily, and seconds later the city  and all of its history  is completely destroyed. Bedford realizes that the Selenites must have been killed off by Cavors common cold viruses to which they had no immunity.