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: Helen is mistaken for pregnant woman, Fact2: pregnant woman was killed on train, Fact3: dead woman 's husband was killed in train crash, Fact4: story takes turn for worse when Helen 's ex-boyfriend and father of child tracks her down after accident, Fact5: Stephen was called in to identify body after tragic train accident

Helen Ferguson is eight months pregnant and unmarried. When she goes to her unfaithful boyfriend Stephen Morley for help, all he gives her is a train ticket back to where she came from. The train crashes while Helen is on board, and she is mistaken for another pregnant woman, who was killed on the train. Helen gives birth to her child and is accepted by the Harknesses, the family of the dead womans husband, Hugh Harkness, who was also killed in the train crash. Since the family had never seen their sons new wife, they believe Helen to be her. The family believes her lapses of memory and uncertain behavior are after effects of the train wreck. With a better life provided for her child, Helen continues the ruse while Bill Harkness, who is the brother of the deceased Hugh, falls in love with her. The story takes a turn for the worse when Helens exboyfriend and the father of her child tracks her down several months after the accident. Stephen was called in to identify the body at the morgue after the tragic train accident, and he figures out through a series of events that Helen is hiding and now married into money. Being the conniving fellow that he is, Stephen contacts Helen, now living as Patrice, and forces her into wedlock. But before his dastardly plan can take full effect, he winds up dead, and the real twist is who exactly the murderer is.