parent_id,child_id,phase_no,ring_type,inc_edge,out_edge
i3,c30,1,A,,
i3,c30,1,B,,
i3,c30,2,A,571542116_01,-571542116_02.96
i3,c30,2,B,571542116_02.96,571542116_02.164
i3,c30,3,A,571542116_01,-571542116_02.96
i3,c30,3,B,571542116_02.96,571542116_02.164
i3,c30,4,A,571542116_01,-571542116_02.96
i3,c30,4,B,571542116_02.96,571542116_02.164