The drape comprises a pair of stacks of {HEAD ~ panels} which are folded around {TAIL ~ parallel fold lines} 
are folded around
The drape comprises a pair of stacks of { HEAD ~ panels } which are folded around { TAIL ~ parallel fold lines }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL