The resulting polyether amides are useful to make polymers, including {HEAD ~ fibers}, with {TAIL ~ unusually good water absorbancy properties} 
with
The resulting polyether amides are useful to make polymers , including { HEAD ~ fibers } , with { TAIL ~ unusually good water absorbancy properties }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL