Negros Island Region
The Negros Island Region ( ; ) , also abbreviated and officially designated as NIR ( unofficially "Region XVIII" ) , was a short-lived administrative region in the Philippines which comprised the provinces of Negros Occidental and Negros Oriental , both of which are part of the island of Negros . 
<triplet> Negros Island Region <subj> administrative region <obj> instance of <subj> Negros Occidental <obj> contains administrative territorial entity <subj> Negros Oriental <obj> contains administrative territorial entity