In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Example Input: Article: Former South African President Nelson Mandela who was treated for a recurring lung infection, dies on Dec. 5th, 2013, at the age of 95. People around the world are mourning the loss of the country's first black president. He was often called humble, charming, loyal person and a man who cared about others. "He seemed to have that special charismatic personality," said Herman Cohen, U.S. assistant secretary of state for Africa from 1989 to 1993. "He became the symbol in the fight against _ ." Mandela was born on July 18, 1918. As a young man he became active in the anti-apartheid movement and joined the African National Congress, or ANC, in the 1940s. The white-led government banned the ANC in 1960, but the group continued to operate secretly. Mandela became head of the group's new military wing, coordinating a sabotage campaign against South African military and government targets. In 1962, he was arrested and put on trial for his actions and sentenced to life in prison on Robben Island off the coast of Cape Town. He spent 18 years there, refusing a government offer to release him if he would renounce the ANC's armed struggle. But he was freed in 1990 after South African President Frederik de Klerk legalized all political parties and discharged most political prisoners. Shortly after his release, Mandela was elected president of the African National Congress. And in 1994, when the ANC won South Africa's first all-race elections, he was inaugurated as the county's first black president at age 75. "Never, never and never again shall it be that this beautiful land will again experience the oppression of one by another," he said. President Mandela said he would stay for only one five-year term. Cohen says Mandela earned international respect for South Africa's national reconciliation. "Mandela devoted himself mainly to rallying the Africans to this new era to work on economic development, having good education, also he was very much of a spokesman on the international scene." he said. In 1993, Mandela shared the Nobel Peace Prize with his once bitter enemy F.W. de Klerk for their contribution to the peace process in South Africa. After receiving the award, Mandela praised the South African people. "All have created a society which recognizes that all people are born equal," he said. In a country torn apart by years of racial conflict, Nelson Mandela is considered a remarkable leader -- a man who turned South Africa away from violence and hatred into a country of greater peace and understanding.
Answer: 28 years
Example Output: How long was Nelson Mandela sent to prison?

Example Input: Article: An astronomer is making a case for launching pop singer Justin Bieber into suborbital space aboard a private rocket ship. The idea is not to rid the world of the Canadian teenager -- he would come back down to Earth eventually, after all -- but rather to help jump-start the emerging suborbital spaceflight industry. It would generate a lot of public interest, which would help commercial spaceflight pick up some much-needed momentum, said Seth Shostak, senior astronomer at the Search for Extraterrestrial Intelligence (SETI) Institute in Mountain View, California. "If there's more interest, there are more customers. If there are more customers, there's more technical development. It's a positive feedback loop, and obviously that's good." Such missions would return to Earth without completing a full lap around the planet. Instead, the flights would hit the edge of space about 62 miles (100 kilometers) above Earth, experience a few minutes of weightlessness, then re-enter the atmosphere and land back at a spaceport. None of these firms are ready to fly customers yet, but some are getting close. For instance, Virgin Galactic hopes to begin powered test flights of its SpaceShipTwo vehicle later this year, with commercial operations perhaps beginning in 2013 or 2014. It is SpaceShipTwo that reportedly grabbed the attention of Beyonce and Jay-Z. Virgin Galactic has collected deposits from nearly 500 customers willing to pay $200,000 for a ride aboard SpaceShipTwo, and both Virgin and XCOR have inked deals to fly scientists and their experiments on research flights. So a suborbital market already exists -- but Shostak is thinking about ways to make it grow. A celebrity launch isn't Shostak's only idea. Suborbital firms should also promote their activities aggressively via social media, Shostak said, and they should make sure their spaceships are bristling with cameras both inside and out, to give the public dramatic views of every mission. Some observers view commercial suborbital spaceflight as a potentially transformative industry, saying it could serve as a stepping stone to the exploration and exploitation of space on an unprecedented scale. While the industry's success is far from assured, Shostak offered some reason for optimism: The American public remains keen on space.
Answer: To arouse the American public's interest.
Example Output: Why may Justin Bieber be sent into suborbital space?

Example Input: Article: Some disabled people use a special card when they park their cars. These are called disabled placards, which are removable signs that can be hung from the rear-view mirror of a car. These placards are only supposed to be for disabled people. These placards are meant to help disabled people in a number of ways. They allow the person to park in special parking spaces. They can also be used when disabled people are being dropped off or picked up. Disabled people can even use them to park without having to pay. Parking officials think that some people are cheating. Not all people who have these placards are disabled. Today, one in sixteen drivers in California carries the sign. There are a lot more people who have disabled placards today than ten years ago. An official from the DMV says that there are many reasons for the increase. As people get older, they may develop health problems and need to have one. There are also other reasons why more drivers have them today. Finally, there are a number of people who have them that should not. Last year the DMV cancelled more than 25,000 permits. They found that lots of people who had the disabled placards had died. These permits are no longer valid. Some people are worried that the system is being abused. They are worried that access to the program could be limited because of the misuse. More rules could make it harder for people with real disabilities to get these placards.
Answer: They allow disabled people to drive anywhere.
Example Output:
What do we know about placards?