It is {HEAD ~ a further object} of {TAIL ~ the present invention} to provide a method of making an inorganic material that fulfills the physical requirements for tagging explosives or other materials of interest 
of
It is { HEAD ~ a further object } of { TAIL ~ the present invention } to provide a method of making an inorganic material that fulfills the physical requirements for tagging explosives or other materials of interest
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH