['they', 'retrieve', 'coil', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'obtain-13.5.2', "Synset('electrical_device.n.01')", 'EmptyParameter', 'EmptyParameter']
They retrieved the coil, but also some most unwelcome guests.
<PRP> retrieved the coil, but also some most Synset('unwelcome.a.01') Synset('machine.n.01').