Teacher: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'.
Teacher: Now, understand the problem? Solve this instance: Context: With his then-wife Barbara Kesel, he co-wrote a Hawk and Dove miniseries in 1988 which was drawn by Rob Liefeld. Link Information: His first published story, was a DC Comics Bonus Book insert in Warlord #131 (September 1988) Question: When did Liefeld start producing comics?
Student:
Answer: 1988