['they', 'try', 'explain', 'EmptyParameter', 'EmptyParameter'] ['they', 'explain', 'EmptyParameter', 'they', 'to']
['<PRP>', 'try-61.1', 'transfer_mesg-37.1.1', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'transfer_mesg-37.1.1', 'EmptyParameter', '<PRP>', 'to']
They try to explain to them.
<PRP> try to explain to <PRP>.