Context: Over the past two years,[clarification needed] dozens of rights-holders, including Sony Music, have sent complaints about Wikipedia.org directly to Google to have content removed.

Question: What search engine company giant has Sony sent requests to regarding content on a website?
Answer: Google

Question: What website does Sony have complaints against?
Answer: Wikipedia.org

Question: Thousands of rights-holders have sent complaints to whom?
Answer: Unanswerable

Question: Rights-holders have complained about Google to which organization?
Answer: Unanswerable

Question: Over the past twenty years, rights-holders have complained to whom?
Answer: Unanswerable

Question: Why did rights-holders complain to Wikipedi.org?
Answer: Unanswerable