{HEAD ~ Power generator} 26 and second power generator 28 may provide equal power or may provide {TAIL ~ different power amounts}  
provide
{ HEAD ~ Power generator } 26 and second power generator 28 may provide equal power or may provide { TAIL ~ different power amounts }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH