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: he held already during his mission in 1430 to Pope Martin V Link Information: Pope Martin V (; January/February 1369 20 February 1431) Question: How long after Markos' mission to the Pope did Martin V pass away?
answer:
Answer: 1

question:
Context: Jacques Rivette Link Information: He wrote and directed twenty feature films, including the two-part Joan the Maiden Question: Where did the director of Joan the Maiden attend school?
answer:
Answer: Sorbonne

question:
Context: "Episode 420" is the 12th episode in the seventh season of the American animated television series Family Guy. Link Information: Family Guy is an American animated sitcom television series created by Seth MacFarlane for the Fox Broadcasting Company. The series centers on the Griffins, a family consisting of parents Peter and Lois; their children, Meg, Chris, and Stewie; and their anthropomorphic pet dog, Brian. The show is set in the fictional city of Quahog, Rhode Island, and exhibits much of its surreal & dark humor in the form of metafictional cutaway gags that often lampoon American culture.

The family was conceived by MacFarlane after developing two animated films, The Life of Larry and Larry & Steve. MacFarlane redesigned the films' protagonist, Larry, and his dog, Steve, and renamed them Peter and Brian, respectively. MacFarlane pitched a seven-minute pilot to Fox in 1998, and the show was greenlit and began production. Question: When was the series of Episode 420 started?
answer:
Answer: 1998