Twotypesofknowledge,triplesfromknowledgegraphsandtextsfromunstructureddocuments,havebeenstudiedforknowledgeawareopen-domainconversationgeneration,inwhichtripleattributesorgraphpathscannarrowdownvertexcandidatesforknowledgeselectiondecision,andtextscanproviderichinformationforresponsegener