Code,Type
"A","none"
"B","curvilinear gulley/drip gulley"
"C","posthole round structure"
"D","4 or 6 post structure"
"E","fence lines"
"F","well or similar"
"G","grave"
"H","shrine"
"I","rectangular building"
"J","square barrow"
"K","other structures"
"L","no information"