In May 2012, Sony Music filed charges against the website IsoHunt. The plaintifs claims in the court document filed at the supreme court of British Columbia: "The IsoHunt Websites have been designed and are operated by the defendants with the sole purpose of profiting from rampant copyright infringement which defendants actively encourage, promote, authorize, induce, aid, abet, materially contribute to and commercially profit from."
Which document was filed at the supreme court of the China?