strain_id	description	flag	length
NZ_CP012802.1	Escherichia coli O157:H7 strain WS4202 chromosome, complete genome	genbank	5332063
NZ_CP012803.1	Escherichia coli O157:H7 strain WS4202 isolate laboratory strain plasmid pO157-WS4202, complete sequence	genbank	92739
NZ_CP012804.1	Escherichia coli O157:H7 strain WS4202 isolate laboratory strain plasmid pOSAK1-WS4202, complete sequence	genbank	3306
