{HEAD ~ These spreadsheet models} are what simulate actual business functions and become {TAIL ~ a task} that will be performed by a student 
{ HEAD ~ These spreadsheet models } are what simulate actual business functions and become { TAIL ~ a task } that will be performed by a student
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH