{HEAD ~ The cutoff} is computed using {TAIL ~ weighted multi automata} for internal transitions of the threads 
is computed using
{ HEAD ~ The cutoff } is computed using { TAIL ~ weighted multi automata } for internal transitions of the threads
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH