{HEAD ~ A system} provides {TAIL ~ the user} with a simulated environment that presents a business opportunity to understand and solve optimally 
provides
{ HEAD ~ A system } provides { TAIL ~ the user } with a simulated environment that presents a business opportunity to understand and solve optimally
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH