n Fitting agent systems  and dql protocol issues together (finin) n Negative query premises (x is NOT known to the kb) n Disjunctive query premises (X or Y is a premise) n Must bind variables that are not returned n Answer bundle size made optional n Termination by lack of requesting additional info is dangerous n Answer kbs:  should they be static across a query session… n Continuations:  what might it mean to hand one to another server