Check if the quest link represents a quest already made by any of the character namesChecks if a quest is already completed for a number of characters.
Icons made by Freepik (http://www.freepik.com) and Egor Rumyantsev (http://www.flaticon.com/authors/egor-rumyantsev) from http://www.flaticon.com are licensed by Creative Commons BY 3.0 (http://creativecommons.org/licenses/by/3.0/)