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: The super-villain Tiger Shark was introduced in issue #5 by writer Roy Thomas and artist John Buscema Link Information: none Question: Which artist worked for the series the longest?
answer:
Answer: none


question:
Context: His voice can be heard in the digital collectible card game by Blizzard Entertainment, Hearthstone. Link Information: none Question: Who is the CEO of the company that produced Hearthstone?
answer:
Answer: none


question:
Context: Johnny Cash recorded a version of "Big Iron" as part of his American Recordings series, which is included in the Cash Unearthed box set. Link Information: none Question: What year did Cash record "Big Iron"?
answer:

Answer: none