We currently have three roles related to term-value pairs:
* ATK_ROLE_DESCRIPTION_LIST
* ATK_ROLE_DESCRIPTION_TERM
* ATK_ROLE_DESCRIPTION_VALUE

Because the documentation for latter two explicitly states that they are "in a description list," there is some hesitancy to use these roles for terms and/or values which are not within a list. We have two choices:

1) Create more roles
2) Remove the description-list association for the latter two's docs

I personally don't see that we need yet another role. And we can keep the current docs for ATK_ROLE_DESCRIPTION_LIST. In other words, an ATK_ROLE_DESCRIPTION_LIST should contain ATK_ROLE_DESCRIPTION_TERM and ATK_ROLE_DESCRIPTION_VALUE objects. It's simply not a requirement for ATK_ROLE_DESCRIPTION_{TERM,VALUE} to exist within a list.