{TAIL ~ Machine} implemented {HEAD ~ activity management system} using asynchronously shared activity data objects and journal data items 
{ TAIL ~ Machine } implemented { HEAD ~ activity management system } using asynchronously shared activity data objects and journal data items
TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH