instruction:
This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
question:
On May 12, 2009, China marked the first anniversary of the quake with a moment of silence as people across the nation remembered the dead. The government also opened access to the sealed ruins of the Beichuan county seat for three days, after which it will be frozen in time as a state earthquake relic museum, to remind people of the terrible disaster. There were also several concerts across the country to raise money for the survivors of the quake.
answer:
What was done for the anniversary?


question:
In game play, players attempt to create goal-scoring opportunities through individual control of the ball, such as by dribbling, passing the ball to a team-mate, and by taking shots at the goal, which is guarded by the opposing goalkeeper. Opposing players may try to regain control of the ball by intercepting a pass or through tackling the opponent in possession of the ball; however, physical contact between opponents is restricted. Football is generally a free-flowing game, with play stopping only when the ball has left the field of play or when play is stopped by the referee for an infringement of the rules. After a stoppage, play recommences with a specified restart.
answer:
Who guards the goal?


question:
With an educational system made up of public school districts and independent private institutions, Oklahoma had 638,817 students enrolled in 1,845 public primary, secondary, and vocational schools in 533 school districts as of 2008[update]. Oklahoma has the highest enrollment of Native American students in the nation with 126,078 students in the 2009-10 school year. Ranked near the bottom of states in expenditures per student, Oklahoma spent $7,755 for each student in 2008, 47th in the nation, though its growth of total education expenditures between 1992 and 2002 ranked 22nd.
answer:

How many students were in Oklahoma's public schools in 2008?