Teacher:In this task, a passage will be given and the goal is to generate a question about temporal relations based on that passage. A temporal relation describes the relation between two things with respect to time e.g., something happens/starts/terminates/... immediately/shortly/usually/... before/after/during/... something else.
Your question should include an event, or ask about an event, and should not be a yes/no question.
Teacher: Now, understand the problem? Solve this instance: Passage: Armed with new powers granted by an emergency session of the New South Wales state parliament, police set up check points on a number of main roads in Sydney's troubled southern suburbs. A wave of arrests followed after several incidents, including a Molotov cocktail thrown at police, an elderly man attacked with a crowbar and an officer injured in a brawl, Assistant Commissioner Dave Owens told the national AAP news agency.
Student:
What event has already finished?