Question: Which long-running tournament in Madison Square Garden is held annually by which Division I multi-sport conference?

Related documents: [0]  [DOC] The Big East Conference (stylized as BIG EAST) is a collegiate athletic conference that competes in NCAA Division I in all sports except football, which is not sponsored. The conference has been officially recognized as a Division I multi-sport conference, effective on August 1, 2013. [END] 
[1]  [DOC] The Big East Men's Basketball Tournament is the championship tournament of the Big East Conference in men's basketball. The winner receives the conference's automatic bid to the NCAA Men's Division I Basketball Championship. Since 1983, the tournament has been held in Madison Square Garden, New York City. As such, the tournament is the longest running conference tournament at any one site in all of college basketball. [END]  
Answer: Big East Conference
Big East Conference