Definition: 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.

Positive Example 1 -
Input: Passage: I submitted the hit. The hit was approved, and then I was paid.
Output: What happened after I submitted the hit?

Positive Example 2 -
Input: Passage: Heavy snow is causing disruption to transport across the UK, with heavy rainfall bringing flooding to the south-west of England. Rescuers searching for a woman trapped in a landslide at her home in Looe, Cornwall, said they had found a body.
Output: What event has started?

Negative Example 1 -
Input: Passage: He will be happy after he attends the party.
Output: Is he happy now?

Negative Example 2 -
Input: Passage: I submitted the hit. The hit was not approved, and then I was not paid.
Output: What did I submit?

Now complete the following example -
Input: Passage: Tehran's Air Quality Control Unit said the Pollutant Standard Index (PSI) -- a standard measurement incorporating carbon monoxide, dust and other pollutants -- has hovered around the "very unhealthy" level of 160 for several days. Such alerts are becoming increasing common, with increased traffic causing the sprawling city's air to be deemed unhealthy for at least 100 days of the year.
Output: 



Output:
What event has already finished?
What event has begun but has not finished?
What will happen in the future?
What happened before Tehran's Air Quality Control Unit said about the the PSI?
What will happen after Tehran's Air Quality Control Unit said about the the PSI?
What has been happening while alerts are becoming increasing common?
What happened after the PSI hovered around the level of 160 for several days?
What will happen after the PSI has hovered around the level of 160 for several days?