package edu.stanford.peer.rbtm.credential;

import edu.stanford.peer.rbtm.engine.*;

/**
 * An EntityExpression can be one of the following:
 * <UL>
 *   <LI>an Entity
 *   <LI>a Role
 *   <LI>a LinkedRole
 *   <LI>an Intersection.
 * </UL>
 *  Currently it is a marker interface
 */
public interface EntityExpression 
		extends ForwardSolution, BackwardSolution, java.io.Serializable
{
}