{HEAD ~ The multicast session repair system} includes {TAIL ~ a repair server} in the network providing the packets it receives in the multicast session to the recipients 
includes
{ HEAD ~ The multicast session repair system } includes { TAIL ~ a repair server } in the network providing the packets it receives in the multicast session to the recipients
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH