{HEAD ~ The method} 4, wherein {TAIL ~ the at least one plant} is a cryogenic air separation plant 
wherein
{ HEAD ~ The method } 4 , wherein { TAIL ~ the at least one plant } is a cryogenic air separation plant
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH