{HEAD ~ These secondary particles} may be shaped by {TAIL ~ a series} of methods into various geometrical forms such as, for example, beads, extrudates, etc 
shaped by
{ HEAD ~ These secondary particles } may be shaped by { TAIL ~ a series } of methods into various geometrical forms such as , for example , beads , extrudates , etc
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH