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'.

Input: Consider 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?

Output: Answer: 4


Input: Consider Input: Passage: Poindexter was commissioned in the United States Navy following graduation from the Georgia Institute of Technology in 1986. After a short period of service at the Hypervelocity Wind Tunnel Facility, Naval Surface Weapons Center, White Oak, Maryland, Poindexter reported for flight training in Pensacola, Florida. He was designated a Naval Aviator in 1988 and reported to Fighter Squadron 124 (VF-124), Naval Air Station Miramar, California, for transition to the F-14 Tomcat. Following his initial training, Poindexter was assigned to Fighter Squadron 211 (VF-211), also at Miramar, and made two deployments to the Persian Gulf during Operations Desert Storm and Southern Watch. During his second deployment in 1993, he was selected to attend the Naval Postgraduate School/U.S. Naval Test Pilot School Cooperative Program. Following graduation in December 1995, Poindexter was assigned as a test pilot and Project Officer at VX-23, the Naval Strike Aircraft Test Squadron (NSATS) at NAS Patuxent River, Maryland. While at NSATS, Poindexter was assigned as the lead test pilot for the F-14 Digital Flight Control System where he logged the first carrier landing and catapult launch of an F-14 with the upgraded flight controls. He also flew numerous high angle of attack/departure tests, weapons separation tests and carrier suitability trials. Following his tour at Patuxent River, Poindexter reported to Fighter Squadron 32 (VF-32) at NAS Oceana, Virginia, where he was serving as a department head when he was selected for astronaut training.
 Link Information: The F-14 first flew on 21 December 1970 Question: What year did the aircraft Poindexter was commissioned to in California first fly?

Output: Answer: 1970 


Input: Consider Input: Passage: The following is the filmography of Santhanam, an Indian film actor who has predominantly appeared in Tamil films as a comedian. He began his career on television shows including Vijay TV's Lollu Sabha enacting the lead role in spoofs of Tamil films. He was subsequently given a chance by actor Silambarasan in a supporting role in Manmadhan (2004) and then was signed on to appear in films including Sachien (2005) and Polladhavan (2007). He appeared in a one-off leading role in Shankar's production Arai En 305-il Kadavul (2008) and subsequently became a staple feature as a comedian in successful Tamil films during the period, with his market popularity helping stuck films find distributors. Santhanam has also had embarked on collaborations with directors including M. Rajesh's comic trilogy of Siva Manasula Sakthi (2009), Boss Engira Bhaskaran (2010) and Oru Kal Oru Kannadi (2012).
 Link Information: none Question: Which of Santhanam's collaborations with directors had the best reviews?


Output: Answer: none