agent | (agent ?ACTION ?AGENT) means that the Agent ?AGENT voluntarily initiates ?ACTION. For example, Eve is an agent in the following proposition: Eve bit an apple | Agent | Process | (=> (instance ?TRANS Transaction) (exists (?AGENT1 ?AGENT2 ?GIVE1 ?GIVE2 ?OBJ1 ?OBJ2) (and (instance ?GIVE1 Giving) (instance ?GIVE2 Giving) (subProcess ?GIVE1 ?TRANS) (subProcess ?GIVE2 ?TRANS) (agent ?GIVE1 ?AGENT1) (agent ?GIVE2 ?AGENT2) (patient ?GIVE1 ?OBJ1) (patient ?GIVE2 ?OBJ2) (destination ?GIVE1 ?AGENT2) (destination ?GIVE2 ?AGENT1) (not (equal ?AGENT1 ?AGENT2)) (not (equal ?OBJ1 ?OBJ2)))))
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