{HEAD ~ The centerguide} is of {TAIL ~ bifurcated construction} which is split at one or both ends of its structure in order to allow it to be maneuvered about the grid structure for partial assembly 
is of
{ HEAD ~ The centerguide } is of { TAIL ~ bifurcated construction } which is split at one or both ends of its structure in order to allow it to be maneuvered about the grid structure for partial assembly
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH