{HEAD ~ A robust business model} provides support for realistic activities and allows {TAIL ~ a user} to experience real world consequences for their actions and decisions 
allows
{ HEAD ~ A robust business model } provides support for realistic activities and allows { TAIL ~ a user } to experience real world consequences for their actions and decisions
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH