['she', 'narrow', 'it', 'EmptyParameter', 'EmptyParameter']
['<PRP>', 'other_cos-45.4', '<PRP>', 'EmptyParameter', 'EmptyParameter']
She has narrowed it down to Ensign Doug Bronowski and Lieutenant William Chapman.
<PRP> has narrowed <PRP> down to <PERSON>14 and <PERSON>15.