['vessel', 'lose', 'power', 'EmptyParameter', 'EmptyParameter']
["Synset('instrumentality.n.03')", 'remove-10.1', "Synset('political_unit.n.01')", 'EmptyParameter', 'EmptyParameter']
Later, the vessel loses main power.
Later, the Synset('instrumentality.n.03') loses Synset('independent.a.03') Synset('political_unit.n.01').