instruction:
In this task, you're given a statement, 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'.
question:
Context: Serra made one CART Champ Car start in 1985 at the Portland International Raceway for Ensign Racing but suffered an engine failure. Link Information: Ensign entered Formula One in , with backing from pay driver, Rikky von Opel. Von Opel had driven for the team in Formula Three in 1972 and won the Lombard North Central, British Formula Three Championship that year. Based upon that success, von Opel commissioned a Formula One chassis. Their first season was not successful, von Opel only finished two races and the team's best result that season was 13th at the 1973 British Grand Prix. Question: How long had Ensign Racing been in business when Serra made one CART Champ Car start at the Portland International Raceway?
answer:
Answer: 12


question:
Context: He commanded the U.S. forces in the Battle of Tirad Pass, 2 December 1899, where General Gregorio del Pilar was killed Link Information: He was promoted to brigadier-general after this event. Question: How long had Gregorio del Pilar been a General for when he was killed?
answer:
Answer: 1 


question:
Context: In 636, he led an Albanian army, which alongside the Armenian prince Mushegh III Mamikonian and Grigor of Syunik Link Information: none Question: Was the person Javanshir wrote a letter to married when Javanshir fought alongside Grigor of Syunik?
answer:

Answer: none