['they', 'meet', 'experience', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'meet-36.3-1', "Synset('event.n.01')", 'EmptyParameter', 'EmptyParameter']
Had addressed her years ago, when they first met -- an experience that would be difficult not to remember.
had addressed <PRP> <DATE>0 ago, when <PRP> <ORDINAL>0 met -- an Synset('event.n.01') that would be Synset('difficult.a.01') not to remember.