['captain', 'let', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['they', 'know', 'EmptyParameter', 'time', 'at']
["Synset('employee.n.01')", 'let-64.2', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'comprehend-87.2', 'EmptyParameter', "Synset('abstraction.n.06')", 'at']
The captain will let them know at the right time.
the Synset('employee.n.01') will let <PRP> know at the Synset('right.a.07') Synset('abstraction.n.06').