{HEAD ~ The amount} of {TAIL ~ viscosity} reducing agent often ranges from about 1 percent to about 10 percent, preferably about 2 percent to about 6 percent, based on the total weight of the formulation 
{ HEAD ~ The amount } of { TAIL ~ viscosity } reducing agent often ranges from about 1 percent to about 10 percent , preferably about 2 percent to about 6 percent , based on the total weight of the formulation
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH