Write a question from the passage such that it identifies a character (a person or a thing) in the passage.

Let me give you an example: I really struggle to feel bad for people who actively choose to be miserable and manipulative. I'm dorky and like to use little proverbs all the time. One of my favorites is this: "you can lead a horse to water, but you can't make him drink." At the end of the day, if someone has a problem, they can never resolve it if they don't truly wish to. You can give someone all the resources in the world, but you can't force them to utilize them. When I was 16, I dated a horrible guy. He was abusive verbally, emotionally, and sexually. He was an incredibly troubled young man and refused to seek help for his severe mental health issues. I eventually came to understand that he reveled in his misery. It was his identity. He acted like he wanted a cure and I'd set him up with resources, but he refused every single one. He may have struggled with serious mental illnesses, but being miserable perversely made him happy and he loved to use his struggles to justify his inexcusable behavior. He wanted to drag as many people into his fiery pit of anguish as possible. I later suffered from severe depression myself, and I never once used it as an excuse to hurt other people. My ex wasn't struggling with his mental health in terms of deliberating and carefully harming others. He was simply exhibiting a personality trait, one he chose to cultivate… and it wasn't my problem. I ended up cutting him off completely in spite of all the threats. I will never feel bad for the awful plight he refuses to help himself out of. I have no patience for that type of person. Know what we call them? Toxic. Poison. A waste of time.
The answer to this example can be: Who was abusive to the author?
Here is why: The question is based on the following sentences in the passage - 'When I was 16, I dated a horrible guy. He was abusive verbally, emotionally, and sexually.'. The sentence clearly explains that the author's boyfriend was abusive to her.

OK. solve this:
SEOUL — Arms control experts estimate that the dismantlement of North Korea's nuclear program could take a decade to complete, and cost $20 billion, if a nuclear agreement is reached between U.S. President Donald Trump and North Korean leader Kim Jong Un when they meet in Singapore on June 12.
"The hard work has not yet begun, and it is gong to take sustained energy on the part of the United States, South Korea, Japan, China and North Korea. It's going to be a multiyear long process," said Daryl Kimball, the executive director of the Arms Control Association in Washington.
President Trump has said he expects a "very positive result" from the North Korea nuclear summit, but he also said it will likely be the beginning of a process to resolve differences over the extent of the North's denuclearization, and the specifics regarding what sanctions relief, economic aid and security guarantees would be offered in return.
U.S. Defense Secretary Jim Mattis said on Sunday that North Korea would only receive sanctions relief after it takes "verifiable and irreversible steps to denuclearization."
This position aligns closer to the Kim government's stance that denuclearization measures and concessions be matched action for action. And it backs away from demands made by some in the president's national security team that Pyongyang quickly and unilaterally dismantle all its weapons of mass destruction before any concessions would be offered.
North Korea is estimated to have 20 to 80 nuclear warheads, both known and covert nuclear research and processing sites, and thousands of ballistic missiles that can be launched from mobile vehicles, and submarine based launchers have been tested in recent years.
With such an extensive nuclear arsenal it could cost $20 billion to achieve the U.S. goal of complete, irreversible, and verifiable nuclear dismantlement (CVID), according to a recent study conducted by Kwon Hyuk-chul, a Kookmin University professor of security strategy.
Kwon based his assessment in part on past nuclear deals with North Korea and Ukraine's experience in dismantling its nuclear arsenal after the fall of the Soviet Union in the 1990s.
Answer:
Who believes the June 12 summit will be the beginning of a process to resolve differences?