The second piston is exposed to a pressure which depends upon {HEAD ~ the pressure} generated in {TAIL ~ the first cylinder} 
generated in
The second piston is exposed to a pressure which depends upon { HEAD ~ the pressure } generated in { TAIL ~ the first cylinder }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL