Office for Metropolitan Architecture
The Office for Metropolitan Architecture ( OMA ) is a Dutch architectural firm based in Rotterdam , founded in 1975 by Dutch architect Rem Koolhaas and Greek architect Elia Zenghelis , along with Madelon Vriesendorp and Zoe Zenghelis . 
<triplet> Office for Metropolitan Architecture <subj> architectural firm <obj> instance of <subj> 1975 <obj> inception <subj> Rem Koolhaas <obj> founded by <triplet> Rem Koolhaas <subj> Office for Metropolitan Architecture <obj> affiliation <subj> Rotterdam <obj> work location