Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: When millionairess Margarita Hamilton moved to a fairytale castle overlooking the quaint Somerset seaside town of Clevedon, it wasn’t long before the genteel residents were up in arms. Accused of hosting noisy booze-fuelled soirees stretching into the small hours at her 17th Century home, the former record company boss received hundreds of complaints and – eventually – the threat of jail. But things were about to get even worse. Her stonemason boyfriend was found dead, face-down in the castle swimming pool three-and-a-half times over the drink-drive limit and with traces of cocaine in his body. And now Margarita’s dream of being queen of Walton Castle has turned into a nightmare as she has been forced to leave altogether.Millionairess Margarita Hamilton at war with her ex Rai over their castleWalton Castle has been the home of numerous noisy booze-filled soireesShe has received more than 150 complaints from council about the eventsNow she is launching a legal battle against Rai over its ownership 
 Question:She claims she was led to believe that a special offshore trust, listed in Guernsey, had been set up solely by _ to secure the castle for his sons.

Rai