{HEAD ~ The container} further comprises an indicator system or means for use with a hydrogen generator and {TAIL ~ a catalyst system} 
comprises
{ HEAD ~ The container } further comprises an indicator system or means for use with a hydrogen generator and { TAIL ~ a catalyst system }
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL