['they', 'involve', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['they', 'leave', 'spacedock', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'involve-107.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter'] ['<PRP>', 'leave-51.2-1', 'spacedock', 'EmptyParameter', 'EmptyParameter']
They've been involved since they left spacedock.
They've been involved since <PRP> left spacedock.