Question: What is the nickname of the creator of the comic strip character "Pig-Pen"?
Sentence (from "Charles M. Schulz"): Charles Monroe Schulz (November 26, 1922 – February 12, 2000), nicknamed Sparky, was an American cartoonist best known for the comic strip "Peanuts" (which featured the characters Charlie Brown and Snoopy, among others).
Relevant evidence: Yes