For any given object type, there is a "Personal pronoun" property (Database Properties window, Definition tab) that is presumably intended to guide verbalization of some constraints. For example, consider the fact type "Person reports to Person" with an irreflexive ring constraint. If the personal pronoun property is selected for the Person object type, the ring constraint should be verbalized something like "No Person reports to himself/herself" instead of the default (but grammatically incorrect) "No Person reports to itself". Currently, only the latter verbalization is produced no matter what the value of the Personal pronoun property.

Reproduced in: Visio for Enterprise Architects v10.0.2705