About: http://webisa.webdatacommons.org/261020906

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Not sure I fully understand the design, but can not you just have the battle class call a method in the manager class when the looser is set to something other than null?
http://www.w3.org/ns/prov#wasQuotedFrom	javaprogrammingforums.com