['Rostov', 'activate', 'communicator', 'EmptyParameter', 'EmptyParameter']
['<LOCATION>3', 'other_cos-45.4', "Synset('causal_agent.n.01')", 'EmptyParameter', 'EmptyParameter']
Rostov activates his communicator.
<LOCATION>3 activates <PRP> Synset('causal_agent.n.01').