Task: Pos Tagging
Input (English): What is the part-of-speech tag of the word "Which" in the following question: Which aired first ? a legal thriller television show which was created by Daniel Zelman , Glenn Kessler , and Todd A. Kessler , or a show which aired four days a week on Comedy Central from October 17 , 2005 , to December 18 , 2014 ?
Output (English): WDT