{TAIL ~ Process} for obtaining at least one tertiary olefin by decomposition of {HEAD ~ the corresponding ether} 
{ TAIL ~ Process } for obtaining at least one tertiary olefin by decomposition of { HEAD ~ the corresponding ether }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD