Original sentence: A conspiracy theory alleges the cause of a specific event or series of events to be a plot by a covert alliance rather than activity by a single perpetrator, a group of people acting publicly, or a natural occurrence.The term has been used pejoratively to dismissively ridicule an allegation and discourage a careful analysis of its claims.The term is also used in popular culture and entertainment to indicate a type of fiction that includes a wide variety of allegedly eccentric or paranoid arguments and narratives in favour of the existence of vast conspiracy
Edited sentence: A conspiracy theory alleges the cause of a specific event or series of events to be a plot by a powerful covert alliance rather than activity by a lone perpetrator, a group of people acting publicly, or a natural occurrence.The term is also used pejoratively to dismissively ridicule an allegation and discourage a careful analysis of its claims.The term may be used to indicate a popular culture that includes a broad selection of eccentric or even "paranoid" arguments in favour of the existence of vast conspiracies