{HEAD ~ This added apparatus} avoids {TAIL ~ the non homogeneous product} liquid problems which were found in certain past applications 
avoids
{ HEAD ~ This added apparatus } avoids { TAIL ~ the non homogeneous product } liquid problems which were found in certain past applications
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH