In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Example Input: Passage: Tomić belonged to the first class of six Serbian pilots trained in France in 1912. In August 1914, he participated in the first aerial dogfight of the war, when he exchanged gunfire with an Austro-Hungarian plane over western Serbia. In the winter of 1915, during the Serbian Army's retreat across Albania to the Greek island of Corfu, he evacuated General Petar Bojović from Scutari by plane, delivered mail by air and transported the Serbian Government's gold and hard currency reserves from Niš to keep them from falling into enemy hands. Following the occupation of Serbia by the Central Powers, Tomić went to France and flew over the Western Front, where he had one confirmed kill. He returned to the Balkans in late 1916, conducted combat missions over Bulgarian-occupied Macedonia and shot down one enemy plane. Tomić continued flying after the war and became head of the Royal Yugoslav Air Force's pursuit squadron in Novi Sad. During World War II, he was captured by the Germans and detained as a prisoner of war. Tomić left Yugoslavia following the war and settled in the United States with his wife. He died in Chicago in 1962.
 Link Information: The Central Powers consisted of the German Empire and the Austro-Hungarian Empire at the beginning of the war. The Ottoman Empire joined the Central Powers later in 1914. In 1915, the Kingdom of Bulgaria joined the alliance. Question: How many nations were part of the powers that occupied Serbia?
Example Output: Answer: 4

Example Input: Passage: Seeing her greatest level of success in the 1980s, Branigan's other singles included the Top 10 hit "Solitaire" (1983), the U.S. AC chart number one "How Am I Supposed to Live Without You" (1983), the Australian No. 2 hit "Ti amo" (1984), and "The Power of Love" (1987). Her most successful album was 1984's platinum-selling Self Control. She also contributed songs to motion picture and television soundtracks, including the Grammy and Academy Award-winning Flashdance soundtrack (1983), and the Ghostbusters soundtrack (1984). In 1985, she won the Tokyo Music Festival with the song "The Lucky One". Her chart success began to wane as the decade closed and after her last two albums Laura Branigan (1990) and Over My Heart (1993) garnered little attention, she generally retired from public life for the rest of the 1990s. She began returning to performing in the early 2000s, most notably appearing as Janis Joplin in the off-Broadway musical Love, Janis. As she was recording new music and preparing a comeback to the music industry, she died at her home in 2004 from a previously undiagnosed cerebral aneurysm. 
 Link Information:  Its worldwide box-office gross exceeded $200 million. Question: Which movie that Branigan was associated with grossed more at the box office?
Example Output: Answer: Ghostbusters 

Example Input: Passage: NSB Class 73 () is a class of 22 electric multiple units built by Adtranz for the Norwegian State Railways. The four-car trains were modifications of Class 71, which was again based on the Swedish X2. The A-series consists of 16 intercity trains; they were delivered in 1999 and 2000 and are used on the Bergen, Dovre and Sørland Lines. The intercity service was branded as Signatur until 2003. The B-series consists of six regional trains delivered in 2002 and used on the Østfold Line. The regional trains were originally part of the Agenda concept. The trains have a power output of and a maximum speed of . They have an overall length of and have a capacity for 208 seated passengers in the A-series and 250 in the B-series. The trains have a tilting mechanism allowing for faster travel through curves.
 Link Information: The company was created in 1996  Question: When was the company that built NSB Class 73 established?
Example Output:
Answer: 1996