['threat', 'receive', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('causal_agent.n.01')", 'obtain-13.5.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
This was only one of a series of threats of violence that have been received.
this was only one of a Synset('relation.n.01') of Synset('causal_agent.n.01') of Synset('action.n.01') that have been received.