SoDak Con
SoDak Con formerly called SoDak Anime Convention , was an annual three-day anime convention held during May/June at the Rushmore Plaza Civic Center in Rapid City , South Dakota . 
<triplet> SoDak Con <subj> anime convention <obj> instance of <subj> Rushmore Plaza Civic Center <obj> location <triplet> Rushmore Plaza Civic Center <subj> Rapid City, South Dakota <obj> operator