Preferably, {HEAD ~ the system} includes {TAIL ~ a transaction interface} associated with the control system for carrying out a current transaction 
includes
Preferably , { HEAD ~ the system } includes { TAIL ~ a transaction interface } associated with the control system for carrying out a current transaction
OTH OTH 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