Definition: In this task, you're given a context passage. Your job is to generate relevant questions that can be answered by directly referring to the passage.

Positive Example 1 -
Input: Tracy slept awkwardly on their new bed and was having some pain, so Tracy cracked her neck.
Output: What did Tracy do with her neck?

Positive Example 2 -
Input: The story of the rise of politician Willie Stark from a rural county seat to the governor's mansion is depicted in the film. He goes into politics, railing against the corruptly run county government, but loses his race for county treasurer, in the face of unfair obstacles placed by the local machine. Stark teaches himself law, and as a lawyer, continues to fight the local establishment, championing the local people and gaining popularity. He eventually rises to become a candidate for governor, narrowly losing his first race, then winning on his second attempt. Along the way he loses his innocence and becomes as corrupt as the politicians he once fought against. When his son becomes paralyzed following a drunk driving accident that kills a female passenger, Stark's world starts to unravel and he discovers that not everyone can be bought off. The story has a complex series of relationships. All is seen through the eyes of the journalist, Jack Burden, who admires Stark and even when disillusioned still sticks by him. Stark's campaign assistant, Sadie is clearly in love with Stark and wants him to leave his wife, Lucy. Meanwhile, Stark philanders and gets involved with many women, taking Jack's own girlfriend, Anne Stanton, as his mistress. When Stark's reputation is brought into disrepute by Judge Stanton (Anne's uncle), he seeks to blacken the judge's name. When Jack finds evidence of the judge's possible wrongdoing, a quarter century earlier, he hides it from Stark. Anne gives the evidence to Stark, who uses it against her uncle, who immediately commits suicide. Anne seems to forgive Stark, but her brother, the surgeon who helped save Stark's son's life after the car crash, cannot. The doctor eventually assassinates Stark after Stark wins an impeachment investigation. The doctor in turn is shot down by Sugar Boy, Stark's fawning assistant. The main plot is a thinly disguised version of the rise of real-life 1930s Louisiana Governor, Huey Long, Long's efforts to blacken the name of Judge Benjamin Pavy, and Long's assassination by the Judge's son-in-law (compared to nephew, as in the film), Dr. Carl Weiss.
Output: What happened to Willie Stark's son?

Negative Example 1 -
Input: tracy wanted to feel safe so she decided to walk behind addison.
Output: What will happen to Tracy?

Negative Example 2 -
Input: Tracy told Ash they needed glasses then they accompanied them to the optician for their appointment.
Output: What does Tracy need to do before this?

Now complete the following example -
Input: Last week when I took a trip into the city I had to ride on the underground to get from one place to another. There are stations all around the city, so I had to find the one that was closest to my destination so I wouldn't have to walk too far after I got off. When I got to the station, I walked down the stairs that led into the underground and went over to the kiosk so I could pay my fee. After I paid my fee I took the ticket and went through the turnstile towards the train. I had to wait with a group of people for the train to arrive, but it didn't take very long. When the train got to my station the doors slowly slid open and everyone walked inside. We found our seats and waited patiently for the train to start moving. I didn't take long. Soon, a nice voice came over the intercom announcing my destination was the next stop, so I stood up and waited to exit the train.
Output: 



Output: Why are they riding the train?