id;tracker;subject;parent;follows
RED-IV;bug;Grand-child;RED-III;
RED-III;bug;Child 2;RED-I;RED-II 1d
RED-II;bug;Child 1;RED-I;
RED-I;bug;Root;;
BLUE-I;bug;Root;;
BLUE-II;bug;Child 1;BLUE-I;
BLUE-III;bug;Child 2;BLUE-I;BLUE-II 1d
BLUE-IV;bug;Grand-child;BLUE-III;
GREEN-II;bug;Thing;#1;#2 3d;