This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: Fans of professional wrestling have their own subculture, comparable to those of science fiction, video games, or comic books (in some cases, the "fandoms" overlap; in recent years, some professional wrestlers, particularly those who nurture an anti-establishment rebel persona, such as CM Punk, have made guest appearances at comic book conventions). Those who are interested in the backstage occurrences, future storylines, and reasonings behind company decisions read newsletters written by journalists with inside ties to the wrestling industry. These "rags" or "dirt sheets" have expanded into the Internet, where their information can be dispensed on an up-to-the-minute basis. Some have expanded into radio shows. Question: What sometimes happens with fandoms?
overlap