#180 PR-OWL 2 plug-in is not properly handling n-ary relationship

[Shou Matsumoto]

The knowledge base component of PR-OWL 2 (the one that reads description logic statements from OWL files) is properly initializing findings with n-ary relationships, but when the SSBN generator asks whether a node has finding, it is not considering such n-ary relationship anymore, so there is some desynchronization within the knowledge base component.