Troyville culture
The Troyville culture is an archaeological culture in areas of Louisiana and Arkansas in the Lower Mississippi valley in the Southeastern Woodlands . 
<triplet> Troyville culture <subj> archaeological culture <obj> instance of <triplet> Louisiana <subj> Mississippi <obj> located in or next to body of water <triplet> Arkansas <subj> Mississippi <obj> located in or next to body of water