Abstract. This paper describes the design and implementation of SweetProlog, a system for translating Web rules into Prolog. It enables the integration of ontologies and rules on the Semantic Web. This is achieved via a translation of OWL ontologies described in Description Logics and rules expressed in OWLRuleML into a set of facts and rules described in Prolog. Finally, the resulting logic program is interrogated by a Prolog engine to deduce new knowledge. 							
						
							
					 															
					Loredana Laera, Valentina A. M. Tamma, Trevor J. M