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'.

Context: The film begins with a narrated map showing the Confederate Army of Northern Virginia, commanded by Robert E. Lee Link Information: Lee was born at Stratford Hall Plantation in Westmoreland County, Virginia Question: What is the birthplace of the man who commanded the  Confederate Army of Northern Virginia?
Answer: Westmoreland County, Virginia

Context: Within this scheme, Dwight D. Eisenhower offered a 25 million dollar loan to the Saudi Government on 24 January 1957. Link Information: was an American army general and statesman who served as the 34th president of the United States from 1953 to 1961 Question: How many years had the person who offered a 25 million dollar loan to the Saudi Government been in office at the time?
Answer: 4

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: 1998