['Boothby', 'warn', 'Chakotay', 'EmptyParameter', 'EmptyParameter'] ['Chakotay', 'let', 'he', 'EmptyParameter', 'EmptyParameter']
['<PERSON>5', 'advise-37.9-1', '<PERSON>0', 'EmptyParameter', 'EmptyParameter'] ['<PERSON>0', 'let-64.2', '<PRP>', 'EmptyParameter', 'EmptyParameter']
Boothby warns Chakotay not to let him.
<PERSON>5 warns <PERSON>0 not to let <PRP>.