Is there a way to change that title created by Team Explorer when we add a related Work Item? "Related to work item XX".

I was planning to use the Work Item Title to create some kind of hierarchy for requirements (with column ordering funcion) .
Ex.:

XX - Father Requirement
XX - Father Requirement: Son req 1
XX - Father Requirement: Son req 2
XX - Father Requirement: Son req 2: Son req 2.1
XX - Father Requirement: Son req 2: Son req 2.2
XX - Father Requirement: Son req 3
.
.
.

Is that possible? I mean, automate this process by defining this titles automatically? Do I have another alternative do create these hierarchies between workitems (not links)?

Thks,
Max