The underside of the barrier is preferably provided with a number of projections for spacing it away from {HEAD ~ the upper surface} of {TAIL ~ the shed} 
of
The underside of the barrier is preferably provided with a number of projections for spacing it away from { HEAD ~ the upper surface } of { TAIL ~ the shed }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL