Definition: In its standard interpretation, the expression (e AGT o) with e ∈ [da ∪ ad] ⊂ [si ∪ abs] characterizes the relation between an event e or, to be specific, an action e and a conceptual object o which actively causes e (i.e. o is originating/sustaining/giving rise to e). In other words, o is the active object (the agent or carrier of the action).

The relation AGT was extended to states, where (s AGT o) with s ∈ [st ∪ as] ⊂ [si ∪ abs] means that the object o actively sustains the state s.