One or more sonic speakers disposed below or coincident to {HEAD ~ the fluid based center} generate {TAIL ~ fluid sound waves} 
One or more sonic speakers disposed below or coincident to { HEAD ~ the fluid based center } generate { TAIL ~ fluid sound waves }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL