{HEAD ~ The plasma emission} contains {TAIL ~ both ions} and electrons from the cathodic arc for which the ions contain the mass to be deposited 
contains
{ HEAD ~ The plasma emission } contains { TAIL ~ both ions } and electrons from the cathodic arc for which the ions contain the mass to be deposited
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH