Question: Passage: (CNN) -- Self-defense or murder? That's the question at the heart of the trial of George Zimmerman, a neighborhood watch volunteer who killed 17-year-old Trayvon Martin. Monday marked the start of jury selection in Seminole County, Florida, where Martin was fatally shot on February 26, 2012. The shooting put a national spotlight on Zimmerman's hometown of Sanford and sparked fresh debates about race relations and gun laws in America. Zimmerman is Hispanic; Martin was African-American. An initial decision not to pursue charges against Zimmerman led to the dismissal of the town's police chief and the appointment of a special prosecutor, who accused the neighborhood watch volunteer of unjustly profiling and killing Martin.
Query: He suffered a fractured nose and cuts to the back of his head, according to a medical report by
Answer: George Zimmerman's family doctor.
Question: Passage: (CNN) -- North Korea's leader Kim Jong Il arrived in Russia on Saturday to meet with President Dmitry Medvedev, authorities said. Kim is scheduled to visit Siberia and the country's eastern region, according to a statement on Medvedev's website. "The meeting with Mr. Medvedev is the main event on his program," the statement said. The statement and North Korea's state media did not say what the two leaders will discuss. Earlier this month, North Korea  again called for the resumption of the so-called six-party talks without preconditions. North Korea pulled out of six-party talks in 2008. The six-party talks involved China, Japan, Russia, South Korea, North Korea and the United States. The goal was nuclear disarmament on the Korean peninsula.
Query: The United States and South Korea, however, have insisted on some tangible demonstration that
Answer: North Korea is serious about denuclearization.
Question: Passage: (CNN) -- A construction accident at the site of the Brazilian stadium that will host the opening match of the World Cup killed two workers, Sao Paulo fire officials said Wednesday. Officials initially said there were three victims, but the fire department amended the death toll on its Twitter account. The Arena Corinthians is one of the venues that will host World Cup matches in 2014. A crane was hoisting a part of the metal roof when it collapsed, causing the piece to fall, partially damaging the building, according to a statement released by the construction company, Odebrecht Infrastructure.
Query: It was unknown how much Wednesday's incident would affect the construction of the
Answer:
Arena Corinthians.