{TAIL ~ The aerosol container} has an aerosol valve from which {HEAD ~ the contents} exit the container 
{ TAIL ~ The aerosol container } has an aerosol valve from which { HEAD ~ the contents } exit the container
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH