The region of {TAIL ~ reduced hydrophobicity} can be {HEAD ~ a hydrophilic region} or a superhydrophilic region 
The region of { TAIL ~ reduced hydrophobicity } can be { HEAD ~ a hydrophilic region } or a superhydrophilic region
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH