The dispenser beacon may be provided with {HEAD ~ a buzzer} , which is triggered by {TAIL ~ a successful transaction} with the care giver 
is triggered by
The dispenser beacon may be provided with { HEAD ~ a buzzer } , which is triggered by { TAIL ~ a successful transaction } with the care giver
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH