a plurality of fluid responsive cylinders each seated in a respective one of said wells and each of said cylinders including {HEAD ~ a cylinder arm} directed outwardly from {TAIL ~ said respective well} 
directed outwardly from
a plurality of fluid responsive cylinders each seated in a respective one of said wells and each of said cylinders including { HEAD ~ a cylinder arm } directed outwardly from { TAIL ~ said respective well }
OTH OTH OTH 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 REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL