Context: On Children's Day, June 1, 2008, many parents went to the rubble of schools to mourn for their children. The surviving children, who were mostly living in relief centres, performed ceremonies marking the special day, but also acknowledging the earthquake.

Question: What was June 1, 2008 called?
Answer: Children's Day

Question: Where were most of the surviving children?
Answer: living in relief centres

Question: What did these children do on that day?
Answer: performed ceremonies

Question: Where did parents go to mourn their children?
Answer: rubble of schools

Question: When is Children's Day?
Answer: June 1

Question: Where were surviving children living?
Answer: in relief centres