Question: "Gnomes" is the seventeenth episode in the second season of the American animated television series "South Park", Season two of "South Park", an American animated television series created by Trey Parker and Matt Stone, began airing on which date?
Sentence (from "Gnomes (South Park)"): The 30th episode of the series overall, it originally aired on Comedy Central in the United States on December 16, 1998.
Relevant evidence: No