Based on the customers choices, the salesperson is able to build {HEAD ~ a portfolio} of {TAIL ~ possibilities} 
of
Based on the customers choices , the salesperson is able to build { HEAD ~ a portfolio } of { TAIL ~ possibilities }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL