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