['they', 'leave', 'study', 'day', 'EmptyParameter'] ['they', 'study', 'Borg', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'leave-51.2-1', 'discover-84-1-1', '<DATE>1', 'EmptyParameter'] ['<PRP>', 'discover-84-1-1', '<PERSON>0', 'EmptyParameter', 'EmptyParameter']
They will be leaving the next day to study the Borg.
<PRP> will be leaving <DATE>1 to study <DATE>1 <PERSON>0.