Greek National Opera
The Greek National Opera ( , "Ethniki Lyriki Skini" ) is the country's state lyric opera company , located in the Stavros Niarchos Foundation Cultural Center at the south suburb of Athens , Kallithea . 
<triplet> Greek National Opera <subj> Stavros Niarchos Foundation Cultural Center <obj> location <triplet> Stavros Niarchos Foundation Cultural Center <subj> Greek National Opera <obj> has part <subj> Kallithea <obj> headquarters location