Real estate tycoon Niranjan Hiranandani is facing legal trouble from his daughter Priya Hiranandani-Vandrevala, who sought arbitration in London in 2009, claiming that her father and brother Darshan violated a 2006 family agreement.
In the context of the input sentence, determine the relationship between 'daughter' and 'London'.
Options: location of formation, distributed by, manufacturer, legal form