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