51a252f8_abulary___ODRL_Community_Group_tity_Type_of_the_Policy_Entity_Semantics
[Identifier] Agreement [Comment] Must contain at least the Party entity with Assigner role and a Party with Assignee role. The latter being granted the terms of the Agreement from the former. [Semantics] 
Policy expressions that are formal contracts (or licenses) stipulating all the terms of usage and all the parties involved.
ODRL Version 2.1 Common Vocabulary | ODRL Community Group