['probe', 'send', 'penetrate', 'EmptyParameter', 'EmptyParameter'] ['probe', 'penetrate', 'it', 'EmptyParameter', 'EmptyParameter']
["Synset('medical_instrument.n.01')", 'send-11.1-1', 'penetrate', 'EmptyParameter', 'EmptyParameter'] ["Synset('medical_instrument.n.01')", 'penetrate', '<PRP>', 'EmptyParameter', 'EmptyParameter']
A probe is sent out to penetrate it.
a Synset('medical_instrument.n.01') is sent out to penetrate <PRP>.