['vessel', 'rock', 'EmptyParameter', 'impact', 'by']
["Synset('instrumentality.n.03')", 'body_internal_motion-49.1', 'EmptyParameter', "Synset('conflict.n.01')", 'by']
The vessel is rocked by an impact of some kind.
the Synset('instrumentality.n.03') is rocked by an Synset('conflict.n.01') of some Synset('concept.n.01').