Machine assisted means may be provided for creating work sharing, work delegating and {HEAD ~ informational sharing agreements} between {TAIL ~ different users} 
between
Machine assisted means may be provided for creating work sharing , work delegating and { HEAD ~ informational sharing agreements } between { TAIL ~ different users }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL