['Archer', 'hear', 'knock', 'EmptyParameter', 'EmptyParameter'] ['Tpol', 'hear', 'knock', 'EmptyParameter', 'EmptyParameter']
['<PERSON>0', 'discover-84', 'sound_emission-43.2', 'EmptyParameter', 'EmptyParameter'] ['<PERSON>2', 'discover-84', 'sound_emission-43.2', 'EmptyParameter', 'EmptyParameter']
Archer and Tpol hear a knocking, and head towards a jammed door.
<PERSON>0 and <PERSON>2 hear a knocking, and Synset('reactor.n.01') towards a jammed Synset('access.n.03').