As well, moveable gates can be utilized to control {HEAD ~ the flow} of {TAIL ~ metallic ions} into the body of water 
As well , moveable gates can be utilized to control { HEAD ~ the flow } of { TAIL ~ metallic ions } into the body of water
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH