do  Roupen Altiparmakian and John Matoian work in the same industry? 
Roupen Altiparmakian: Roupen Altiparmakian is a master of the violin and oud, born in Adana, Turkey. John Matoian:  He was a vice-president of the CBS Entertainment division. John Matoian:  In 1996 he became the president of HBO.
i don't know