The deployment of {HEAD ~ the pouch} causes {TAIL ~ the fragrance} microcapsules to break, thereby enabling the air that is contained inside the pouch to become laden with fragrance 
The deployment of { HEAD ~ the pouch } causes { TAIL ~ the fragrance } microcapsules to break , thereby enabling the air that is contained inside the pouch to become laden with fragrance
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH