{HEAD ~ Suitable supports} include zeolites, kieselghur, fullers or diatomaceous earth, alumina and {TAIL ~ silica gel} 
{ HEAD ~ Suitable supports } include zeolites , kieselghur , fullers or diatomaceous earth , alumina and { TAIL ~ silica gel }
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL