['they', 'try', 'avoid', 'EmptyParameter', 'EmptyParameter'] ['they', 'avoid', 'that', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'try-61.1', 'avoid-52', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'avoid-52', 'that', 'EmptyParameter', 'EmptyParameter']
They must try to avoid that.
<PRP> must try to avoid that.