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: Adam also co-wrote and co-starred in the movie Rats and Cats, which premiered to sell-out audiences and critical acclaim at the 2006 Melbourne International Film Festival and went on to screen at the SXSW Film Festival in 2009. Link Information: none Question: Who else co-starred in the movie that Zwar co-wrote that premiered to sell-out audiences at the 2006 Melbourne International Film Festival?
Answer: none

Context: The kokubun-ji was first excavated in 1949, and is on a plateau above the Yōrō River in close proximity to Tokyo Bay. Link Information: none Question: What ocean is Tokyo bay located?
Answer: none

Context: The Best Science Fiction of the Year was a series of annual paperback anthologies edited by Terry Carr. It was published by Ballantine Books from 1972 to 1980 Link Information: Ballantine Books is a major book publisher located in the United States, founded in 1952 by Ian Ballantine with his wife, Betty Ballantine. Question: How many years had Ballantine Books been in business before it started published the series of annual paperback anthologies?

Answer: 20