Therefore, this applicant introduces {HEAD ~ a unit} that will prevent {TAIL ~ such exposure} and its related problems 
prevent
Therefore , this applicant introduces { HEAD ~ a unit } that will prevent { TAIL ~ such exposure } and its related problems
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH