It is {TAIL ~ another object} of {HEAD ~ my invention} to provide a pest extermination system which is permanently installed in a building structure 
It is { TAIL ~ another object } of { HEAD ~ my invention } to provide a pest extermination system which is permanently installed in a building structure
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH