strain_id	description	flag	length
NZ_CP038339.1	Escherichia coli O157:H7 strain H6437 chromosome, complete genome	genbank	5477854
NZ_CP038341.1	Escherichia coli O157:H7 strain H6437 plasmid pH6437-1, complete sequence	genbank	92839
NZ_CP038340.1	Escherichia coli O157:H7 strain H6437 plasmid pH6437-2	genbank	56083
