Question: The mother of Julian Lennon unveiled what monument in Liverpool, England? 

Related documents: [0]  [DOC] Cynthia Lennon (née Powell; 10 September 1939 – 1 April 2015) was the first wife of English musician John Lennon and mother of Julian Lennon. She grew up in the middle-class section of Hoylake, on the Wirral Peninsula in North West England. At the age of 12, she was accepted into the Junior Art School, and was later enrolled in the Liverpool College of Art. John Lennon also attended the college; a meeting with Powell in a calligraphy class led to their relationship. [END] 
[1]  [DOC] The John Lennon Peace Monument, also known as the European Peace Monument, is a peace monument entitled Peace & Harmony in Liverpool, England, dedicated to the memory of John Lennon. "Peace & Harmony" was unveiled by Julian and Cynthia Lennon at a ceremony in Chavasse Park, Liverpool, on Saturday 9 October 2010 to celebrate what would have been John Lennon's 70th birthday. The monument is now on the waterfront adjacent to ACC Liverpool at Kings Dock. [END]  
Answer: Peace & Harmony
Peace & Harmony