It is yet another {HEAD ~ object} of {TAIL ~ this invention} to provide a pressure pump to assist in dislodging the blockage at the drain 
of
It is yet another { HEAD ~ object } of { TAIL ~ this invention } to provide a pressure pump to assist in dislodging the blockage at the drain
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH