strain_id	description	flag	length
NC_007530.2	Bacillus anthracis str. 'Ames Ancestor', complete sequence	genbank	5227419
NC_007322.2	Bacillus anthracis str. 'Ames Ancestor' plasmid pXO1, complete sequence	genbank	181677
NC_007323.3	Bacillus anthracis str. 'Ames Ancestor' plasmid pXO2, complete sequence	genbank	94830
