{HEAD ~ The guide member} is held in {TAIL ~ position} by a column support between the housing and the upper side of the guide 
is held in
{ HEAD ~ The guide member } is held in { TAIL ~ position } by a column support between the housing and the upper side of the guide
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH