Input: Article: The Canadian Special Operations Forces Command (CANSOFCOM) is a formation capable of operating independently but primarily focused on generating special operations forces (SOF) elements to support CJOC. The command includes Joint Task Force 2 (JTF2), the Canadian Joint Incident Response Unit (CJIRU) based at CFB Trenton, as well as the Canadian Special Operations Regiment (CSOR) and 427 Special Operations Aviation Squadron (SOAS) based at CFB Petawawa.

Now answer this question: Where is the Canadian Joint Incident Response Unit based?

Output: CFB Trenton

Input: Article: Season ten of the series premiered on January 19, 2011. Many changes were introduced this season, from the format to the personnel of the show. Jennifer Lopez and Steven Tyler joined Randy Jackson as judges following the departures of Simon Cowell (who left to launch the U.S. version of The X Factor), Kara DioGuardi (whose contract was not renewed) and Ellen DeGeneres, while Nigel Lythgoe returned as executive producer. Jimmy Iovine, chairman of the Interscope Geffen A&M label group, the new partner of American Idol, acted as the in-house mentor in place of weekly guest mentors, although in later episodes special guest mentors such as Beyonce, will.i.am and Lady Gaga were brought in.

Now answer this question: Who was the executive producer of American Idols tenth season?

Output: Nigel Lythgoe

Input: Article: According to Paul Martin, Sr., by the end of the 1970s the Queen was worried that the Crown "had little meaning for" Pierre Trudeau, the Canadian Prime Minister. Tony Benn said that the Queen found Trudeau "rather disappointing". Trudeau's supposed republicanism seemed to be confirmed by his antics, such as sliding down banisters at Buckingham Palace and pirouetting behind the Queen's back in 1977, and the removal of various Canadian royal symbols during his term of office. In 1980, Canadian politicians sent to London to discuss the patriation of the Canadian constitution found the Queen "better informed ... than any of the British politicians or bureaucrats". She was particularly interested after the failure of Bill C-60, which would have affected her role as head of state. Patriation removed the role of the British parliament from the Canadian constitution, but the monarchy was retained. Trudeau said in his memoirs that the Queen favoured his attempt to reform the constitution and that he was impressed by "the grace she displayed in public" and "the wisdom she showed in private".

Now answer this question: What was retained in the constitution?

Output:
monarchy