Upon arrival at the desired location and {HEAD ~ a given amount} of {TAIL ~ time}, the encapsulated breaker can be released 
of
Upon arrival at the desired location and { HEAD ~ a given amount } of { TAIL ~ time } , the encapsulated breaker can be released
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH