{HEAD ~ The system} is able to determine {TAIL ~ the identity} of each sample container in the system and maintain that information in a database 
is able to determine
{ HEAD ~ The system } is able to determine { TAIL ~ the identity } of each sample container in the system and maintain that information in a database
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH