In other words, it is an object of the present invention to remove contaminants or eliminate {HEAD ~ any bad smell} of {TAIL ~ various contaminated materials} 
of
In other words , it is an object of the present invention to remove contaminants or eliminate { HEAD ~ any bad smell } of { TAIL ~ various contaminated materials }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL