Lebanon is in a period of mourning after a massive car bomb killed the former Prime Minister, Rafik Hariri, on Tuesday.
Question: Mr. Hariri was killed in a bomb explosion.
yes

A team from the U.S. Centers for Disease Control boarded the ship when it docked in St. Maarten to oversee the cleaning operation and try to determine what caused the outbreak, Carnival said.
Question: The causes of the outbreak were searched for by a team from the U.S. CDC.
yes

While preliminary work goes on at the Geneva headquarters of the WTO, with members providing input, key decisions are taken at the ministerial meetings.
Question: The WTO headquarters are located in Geneva.
yes