The mixture of {TAIL ~ carbon dioxide} and octenol is released from the housing for attracting {HEAD ~ insects} 
The mixture of { TAIL ~ carbon dioxide } and octenol is released from the housing for attracting { HEAD ~ insects }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD