Read the following premise and answer if the hypothesis is true.
Stephen R. "Steve" Bissette (born March 14, 1955) is an American comics artist, editor, and publisher with a focus on the horror genre. He is known for working with writer Alan Moore and inker John Totleben on the DC comic book "Swamp Thing" in the 1980s.
Hypothesis: Alan Moore wrote comic books in the 1970s and 1990s.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say based on the given information. Alan Moore's comic book writing career spans several decades, but the given information only