These and other objects of the instant invention are also achieved by providing {HEAD ~ an apparatus} for automatically dislodging {TAIL ~ a person} or thing trapped at the drain of a liquid reservoir 
These and other objects of the instant invention are also achieved by providing { HEAD ~ an apparatus } for automatically dislodging { TAIL ~ a person } or thing trapped at the drain of a liquid reservoir
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH