You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
Q: Context : Empresa de Transporte Aereo del Peru S.A., usually known as Aeroperu, was a Peruvian airline, serving as flag carrier of Peru from 1973 to 1999.
Subject : Aeroperu
Relation : parent company
A:
What company is Aeroperu part of?