Analyze the relationship between 'Quentin Purdy' and 'District Judge' within the context of the input sentence.
Options: position held, platform, business division, currency

ENLARGE U.S. authorities allege Navinder Singh Sarao contributed to the swift drop in stocks on May 6, 2010, known as the “flash crash.” Photo: Lauren Hurley/PA Wire/Zuma Press At a hearing in central London on Friday, District Judge Quentin Purdy agreed to the defense lawyer’s request to adjourn the hearing, setting a new date in February next year, after U.S. prosecutors released evidence overnight alleging that Mr. Sarao started to use illegal trading strategies in January 2009, six months earlier than previously claimed.
position held