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