The RIF Core must be able to accept OWL KBs as data
The RIF core must be able to handle OWL KBs as data, including at least treating OWL instance information as unary predication.
Position in the DC structure
Level: Requirement [PROPOSED]
This is needed to make the RIF interact with the higher levels of the semantic web.
Note that requirement does not (yet) address the meaning of RIF rules.
An attempt at clarifying the different ways OWL KBs could be accepted as data: Ways of using OWL KBs as data