Question: What episode features the character Wendy Testaburger of a show that aired on Comedy Central in August of 1997? 
Sentence (from "Wendy Testaburger"): The series' most prominent female character, she is best known for her on-again, off-again relationship with her boyfriend, Stan Marsh, and being more intelligent and mature than most children her age, which is utilized by her activism and feminism.
Relevant evidence: No