{HEAD ~ This universal rewards currency} may be “spent” by {TAIL ~ participants} who have earned rewards and accepted by the other participants in the multi tiered network created by the system 
spent by
{ HEAD ~ This universal rewards currency } may be “ spent ” by { TAIL ~ participants } who have earned rewards and accepted by the other participants in the multi tiered network created by the system
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH