{HEAD ~ A coring device} is mounted onto the platform and used for forming {TAIL ~ a cavity} in the nuggets 
used for forming
{ HEAD ~ A coring device } is mounted onto the platform and used for forming { TAIL ~ a cavity } in the nuggets
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH